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Electric Circuits

Electric Circuits
The electrical conductivity of metal is typically of the order of (in ohm - m)

 107.
 10 - 6.
 10 - 4.
 105.

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Electric Circuits
Which of the followings is the expression for energy stored in a capacitor?

 C / v.
 (1 / 2) Cv2.
 C dv / dt.
 Cv.

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 15.
 105.
 60.
 75.

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Electric Circuits
An ac voltage source v = vo sinωt is connected across a parallel plate capacitor C. If the conductor current is ic and the displacement current is id, then which is true among following relation

 ic = id.
 ic + id = 0.
 ic > id.
 ic < id.

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Electric Circuits
Rms value is defined based on which of the following?

 Voltage
 Heating effect
 Current
 Charge transfer

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Electric Circuits
For ideal tank circuit what is the value of dynamic impedance?

None of these
 Both
 ∞
 0

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MORE MCQ ON Electric Circuits

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