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Electric Circuits

Electric Circuits
Conductance of any conductor is expressed as

  volt2 / watt.
  mho.
  ampere / watt.
  watt / ampere2.

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Electric Circuits
A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the value of C?

 10.54 µF.
 8.51 µF.
 1.8 µF.
 4.78 µF.

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Electric Circuits
A capacitor has a capacitance of 6 μF. Calculate the stored energy in it if a DC voltage of 100 V, is applied across it?

 4 × 102 joules.
 2.5 × 102 joules.
 3 × 102 joules.
 6 × 102 joules.

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Electric Circuits
When the battery is being charged, the terminal voltage decreases with

 increasing temperature.
 increasing charging rate.
 increasing state of charge.
 none of these.

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Electric Circuits
Fall time is the time required for a pulse to decrease from 90 to ________% if its maximum values

 20
 15
 10
 5

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Electric Circuits
A load is connected to an active network. At the terminals to which the load is connected, RTH = 10 Ohm, VTH = 60V. Then maximum power supplied to the load is

 180W.
 360W.
 90W.
 60W.

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