How much BTC is one u
Publish: 2021-05-22 03:28:41
1. Btcu and BTC have nothing to do with each other. Although they are only one letter short, they mean the opposite
2. The power factor of resistance load is 1; F is the AC frequency, unit: Ω The power factor of pure inctance is equal to 0; √(R^2+(2 π FL) ^ 2) r is DC resistance: cos φ= R /: h. The power factor of pure capacitor is also 0, only reactive power and active power are zero. Therefore, the power factor of pure inctance is equal to 0, which is commonly known as DC resistance: Hz. When the current passes through the resistance, the power factor of pure capacitor is also 0, which will consume power (active power). The power factor of actual inctor considering DC resistance is, unit; L is the inctance, unit. Similarly, power factor is the ratio of active power to apparent power. When pure inctance passes through alternating current
3.
Hope to help you, as shown in the figure
4. 1U is a noun for height. 1U = 1.75 inches = 4.445cm
u is a unit for the external size of the server, which is an abbreviation for unit. The detailed size is determined by the American Electronic Instry Association (EIA), an instry group
the width (48.26cm = 19 inches) and height (multiple of 4.445cm) of the server. Because the width is 19 inches, the rack meeting this requirement is sometimes called "19 inch rack"<
1U is 4.445cm, 2U is 2 times of 1U, 8.89cm
in other words, the so-called "1U PC server" is a proct whose appearance meets EIA specification and thickness is 4.445cm. Procts designed to fit into 19 inch cabinets are generally referred to as rack servers
u is a unit for the external size of the server, which is an abbreviation for unit. The detailed size is determined by the American Electronic Instry Association (EIA), an instry group
the width (48.26cm = 19 inches) and height (multiple of 4.445cm) of the server. Because the width is 19 inches, the rack meeting this requirement is sometimes called "19 inch rack"<
1U is 4.445cm, 2U is 2 times of 1U, 8.89cm
in other words, the so-called "1U PC server" is a proct whose appearance meets EIA specification and thickness is 4.445cm. Procts designed to fit into 19 inch cabinets are generally referred to as rack servers
5. Resistor series partial voltage, left 25V, right 75V, u = 25-75 = - 50V
6. 1U = 44.5mm
standard width: the hole spacing is 470mm
standard width: the hole spacing is 470mm
7.
1um=40u
1 μ= 1unch (micro inch) = 0.0254 μ M (micron) = 25.4mm (millimeter) 1 μ M (micron) = 0.001mm (mm) 1mm (mm) = 1000 μ M (micron)
extended data:
1 bar = 100 kPa
1 kPa = 0.145 LBF / in2 (PSI & # 178;)= 0.0102 kgf / cm= 0.0098 ATM
1 LBF / in (PSI) = 6.895 kPa = 0.0703 kgf / cm (kg / cm) = 0.0689 bar = 0.068 ATM
1 Physical ATM = 101.325 kPa = 14.696 psi = 1.0333 bar
1 Engineering ATM = 98.0665 kPa1 mmh2o = 9.80665 PA
1 mmHg = 133.322 pa
1 Torr = 133.322 PA
1 dyne / cm2 (dyn / cm & # 178;)= 0.1 PA (PA)
8. A.4V
9. According to the positive and negative of u, start from its "+" and return to "-", the value in the same direction as its positive and negative is taken as "positive", and the value in the opposite direction is taken as negative
so u = (- 30) + (10) + (- 20) = - 40 V
note: the results can also be obtained from the change of potential
if the "-" end potential of u is 0, then the "+" end potential of 30V resistance is + 30V, the "-" end potential of 10V resistance is + 20V, and the "+" end potential of 20V resistance is 40V
it can be seen that the potential at the "-" end of u is 40V higher than that at the "+" end, so u = - 40V.
so u = (- 30) + (10) + (- 20) = - 40 V
note: the results can also be obtained from the change of potential
if the "-" end potential of u is 0, then the "+" end potential of 30V resistance is + 30V, the "-" end potential of 10V resistance is + 20V, and the "+" end potential of 20V resistance is 40V
it can be seen that the potential at the "-" end of u is 40V higher than that at the "+" end, so u = - 40V.
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