Novice digital currency

1. digital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English. It is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy. Digital currency is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of a specific virtual community. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form. Digital currency is a kind of venture capital. Some people can make profits in this market, while others can make losses in this market. To make money, digital currency can be invested by mining and trading on the platform. Digital currency has price fluctuation and is investable in theory

warm tips: the above explanations are for reference only, without any suggestions. There are risks in entering the market, so investment should be cautious. Before making any investment, you should make sure that you fully understand the nature of the investment and the risks involved in the proct. After a detailed understanding and careful evaluation of the proct, you can judge whether to participate in the transaction
response time: December 2, 2020. Please refer to the official website of Ping An Bank for the latest business changes
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2. 1. Register trading platform
2. Change your soft currency into digital currency
3. Buy cryptocurrency

3. Digital currency trading, stock trading and futures are all of the same type of trading, so you should first understand the market situation and learn more financial knowledge before you can enter the market. Those who are deep in the financial market should be cautious.

4. When I'm a novice, I sell it on dcpro. There's no big risk. There's formal supervision and I can't be trapped.

5. However, it is not recommended to play digital currency for novices. This kind of virtual currency is hard to control.

6. China has not yet recognized its status, which is illegal and easy to run away at any time

7. 1、 Charged objects 1. Concept: objects have the property of attracting light and small matter, that is, they are charged, or charged. 2. Methods to make the object charged: (1) friction electrification: two different substances rub each other to make the object charged 2) Contact electrification: the original non electrified object can be electrified when contacting with electrified body. 2、 There are only two kinds of electric charge in nature: (1) the electric charge of silk rubbing with glass rod is positive, which is expressed by + 2) The friction charge between the fur and the rubber rod is negative, which is represented by -. 3、 The interaction between charges 1. The same charges repel each other. 2. Different charges attract each other. 4、 Check whether the object is charged method 1, according to the nature of charged body and the interaction between charges to judge. 2. Electroscope: (1) function: it is a kind of instrument commonly used in laboratory to check whether the object is charged 2) Structure: metal ball, metal rod, metal foil, closure cover 3) Principle: bimetallic foil, same sex repels each other. 5、 Charge quantity 1. Concept: the amount of charge is called charge quantity, which is represented by the symbol Q. 2. Unit: the international unit is Coulomb, which is represented by the symbol C. 6、 The nuclear structure explains the electric phenomenon with the electron theory. 1. Concept: the atom is composed of the nucleus in the center and the electrons running at high speed outside the nucleus. The radius of the nucleus is one thousandth of the radius of the atom. The nucleus almost concentrates all the mass of the atom and is positively charged. 2. Basic charge: (1) the charge of an electron is 1.6 × The 10-19 library, called the basic charge, is represented by the symbol E 2) The charge of any charged body is an integral multiple of E, so e can be used as the unit of charge. 3. Neutral state: in general, the positive charge of the nucleus is equal to the negative charge of the electrons outside the nucleus. The positive and negative charges counteract each other and do not show electricity. The objects composed of atoms are also neutral. 4. Neutralization phenomenon: the same amount of heterogeneous charges meet, and the external effects cancel each other, showing a neutral phenomenon. 5. Friction electrification: (1) reasons: different substances have different ability to bind electrons. When rubbing, the weak one is easy to lose the positive electron band, and the strong one is easy to get the negative electron band 2) Essence: it's the transfer of electrons (without creating charge). 7、 Current 1. Concept: the directional movement of charge forms current. 2. The conditions for maintaining continuous current in the circuit are: (1) power supply 2) The circuit is closed. 3. Direction of current: it is stipulated that the direction of directional movement of positive charge is the direction of current. According to this regulation, the current starts from the positive pole of power supply and flows to the negative pole of power supply. In the metal conctor, the free electrons actually move in the direction opposite to the specified current direction. In acid, alkali and brine solutions, positive and negative charges (ions) move in opposite directions. 8、 Power supply 1. Power supply is a device that can provide continuous current. 2. From the point of view of energy, power supply is a device that converts other forms of energy into electric energy. 3. The positive pole of dry cell is carbon rod (gather positive charge), and the negative pole is zinc sheet (gather negative charge). 4. Dry cell is to separate positive and negative charges by chemical reaction. 9、 Conctor, insulator 1. Easily concting objects are called conctors, such as metal, graphite, human body, earth and aqueous solution of acid, alkali and salt. 2. Objects that are not easy to conct electricity are called insulators, such as rubber, glass, ceramics, plastics, oil, pure water, etc. 3. The reason why conctors conct electricity easily: there are a lot of free moving charges in conctors. 4. The differences between conctor and insulator are: (1) the number and existence of free charge 2) There is no strict boundary between the two, and the insulator can be transformed under certain conditions. 10、 Circuit 1, circuit: by the power supply, electrical appliances, switches, wires and other components of the current path. 2. Electrical appliances: also known as load, is the use of current to work equipment, is the electrical energy into other forms of energy devices. 3. Conctor: the conctor connecting circuit components, which is the channel of current and can transmit electric energy. 4. Switch: control the current on and off. 5. Path: the circuit is closed and connected everywhere. There is current in the circuit. 6. Open circuit: there is no current in the circuit e to the disconnection of a certain part of the circuit (except the switch). 7. Short circuit: the phenomenon that the current directly returns to the power supply without passing through the consumer (equivalent to circuit shortening). 8. Harm of short circuit: it can burn out power supply, damage circuit equipment and cause fire. 11、 Circuit diagram 1. Circuit diagram: a diagram showing circuit connection with specified symbols. 2. When drawing the circuit diagram, attention should be paid to: the position of the components should be arranged properly, the distribution should be uniform, and the components should not be drawn at the corner. The whole circuit should be rectangular, angular and horizontal. 12、 Series circuit 1. Concept: connect the circuit elements one by one. 2. Features: (1) the current passing through one component also passes through another component, and the current has only one path 2) Any open circuit in the circuit, electrical appliances can not work, so only a switch control. 13、 Parallel circuit 1. Concept: connect the circuit elements in parallel (only the two ends of the parallel elements have the common end). 2. Features: (1) the main current is divided into two (or more) branches at the branch 2) Each component can work independently without interference 3) The main switch controls the whole circuit, and the branch switch only controls this branch. 14、 Current 1. Concept: the amount of charge passing through the cross section of a conctor in one second is called current, which is represented by the symbol I. 2. Unit: the international unit of current is ampere, referred to as ampere, represented by the symbol a. 3. Expression: I = q / T = Ku / S = a, that is to say, if the amount of charge passing through the cross section of the conctor in one second is 1 Ku, then the current in the conctor is 1 A. 4. Other common units: Ma, Ma μ A 5. Conversion relation: 1A = 103ma, 1mA = 103 μ A，1A＝106 μ A 6. Macroscopic expression of current size: for the same bulb, the greater the brightness is, the higher the temperature is, that is, the greater the effect of current is, indicating that the current passing through the bulb is greater. 7. How to read the current indication correctly: confirm the range of the ammeter you use, and confirm the current value indicated by each large grid and each small grid according to the range. The reading line should be vertical to the surface. 2. The rules of using ammeter correctly are as follows: (1) ammeter must be connected in series in the circuit under test 2) The current must be removed from the & quot+& quot; Terminal entry, from & quot-& quot; Terminal outflow 3) The current to be measured shall not exceed the range of the ammeter. When the current to be measured cannot be estimated in advance, the maximum range shall be used first and try to touch it. According to the situation, the ammeter with small range or larger range shall be used 4) It is absolutely not allowed to connect the ammeter to the two poles of the power supply without using electrical appliances. 16、 Voltage 1. Concept: the power supply continuously makes the positive electrode gather positive charge and the negative electrode gather negative charge ring the work, so the voltage will be generated between the positive and negative electrodes of the power supply. The voltage is indicated by the symbol U. 2. Voltage is the cause of current formation in the circuit, and power supply is the device providing voltage. 3. Unit: the international unit of voltage is volt, which is indicated by the symbol v. 4. Other common units: kilovolt (kV), millivolt (MV), microvolt μ V 5. Conversion relation: 1kV = 1000V, 1V = 103, 1mV = 103 μ V 6. Different currents can proce different voltages at both ends of the circuit. 7. Common voltage values: dry battery 1.5V, storage battery 2V, domestic power 220V, safe voltage to human body no more than 36V. 17、 Voltmeter 1 and voltmeter are instruments for measuring voltage. 2. Identify the symbol of the voltmeter. The V on the dial is a voltmeter. 3. How to read the volt indication correctly (two are confirmed with the ammeter, one is vertical) (1) the rules for the correct use of the voltmeter: ① the voltmeter should be connected in parallel at both ends of the circuit under test; ② The current must be removed from the & quot+& quot; Terminal entry, from & quot-& quot; Terminal outflow; ③ The measured voltage should not exceed the range of the voltmeter. When it is impossible to predict the measured voltage, first use the maximum range and try to touch it. According to the situation, use the voltmeter with small range or more range; ④ The voltmeter can be directly connected to the positive and negative poles of the power supply, and the measured voltage is the power supply voltage. 18、 Before the experiment, we must carefully read the teaching materials and experimental books, complete the preview questions, and make clear the purpose and principle of the experiment. 2. Enter the laboratory to strictly abide by the experimental discipline, according to the experimental group list, no loud noise. It is strictly forbidden to take other groups of equipment randomly. During the experiment, we should strictly abide by the precautions of the experiment, and carry out the experiment according to the experimental operation proceres and experimental steps. Everyone is required to start and use their brains instead of watching. If there is any problem, they can raise their hands to report. 3. Before connecting the circuit, we must draw the experimental circuit diagram and mark the instrument terminal+& quot;、& quot;-& quot; 4. When connecting the circuit according to the circuit diagram, the switch must be disconnected. For the complex circuit, the series circuit should be connected first, and then the parallel circuit should be connected. The wire head should be tightened. The voltage of the student's power supply must take the specified value according to the requirements, and it can only be powered on after checking. If you are not sure, you should raise your hand and ask the teacher to help you check. 5. The experiment must be carried out according to the predetermined steps, read carefully, record the data realistically, and fill in the experimental conclusion through data analysis. 6. After the experiment, the equipment should be checked, sorted and restored, and the teacher should check before leaving. 19、 The results are as follows: 1. The current intensity in series circuit is equal: I = I1 = I22; the current in parallel circuit is equal to the sum of the currents in each branch: I = I1 + i23; the total voltage of series battery is equal to the sum of the voltages of single battery: u = U1 = u24; the voltage of parallel battery is equal to the voltage of single battery: u = U1 = u25 The total voltage of the series circuit is equal to the sum of the voltages at both ends of each circuit: u = U1 + u26. The voltages at both ends of each branch in the parallel circuit are equal, and the total voltage is equal to the resistance at both ends of each branch. 1. Concept: the resistance of the conctor to the current is indicated by the letter R. 2. International unit: Ohm, short for ohm, with symbol Ω express. 3. Measurement method: if the voltage at both ends of the conctor is 1 V and the current is 1 A, the resistance of this section of conctor is 1 ohm. 4. Common unit and conversion: kiloohm (k) Ω， Megaohm (m) Ω， 1 M Ω＝ 103 K Ω＝ one hundred and six Ω 2、 The factors that determine the resistance are as follows: 1. It is related to the material of the conctor. The conctivity of different materials is different (silver, copper, aluminum, tungsten, iron). 2. It is related to the length of the conctor. The longer the conctor, the greater the resistance; It is related to the cross-sectional area of the conctor. The smaller the cross-sectional area of the conctor, the greater the resistance. Therefore, the resistance of the conctor is determined by the nature of the conctor itself. 3. The resistance of the conctor is also related to the temperature. The resistance of the metal conctor increases with the increase of the temperature. 4. Insulators can be converted into conctors under certain conditions (temperature, humidity, etc.). 5. Comparing the resistance of different conctors can be obtained by analyzing the similarities and differences of material, length and cross-sectional area. 3、 Resistance type 1, fixed value resistance: there is a fixed value to determine the resistance value, the symbol in the circuit: 2, variable resistance: (1) the resistance value can be changed in a certain range according to the requirements 2