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Electric Circuits

Electric Circuits
Capacitor does not allow the sudden change of

 voltage
None of these
 power
 current

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Electric Circuits
For the resonance circuit ω0 = 105, Q = 50, R = 400 Ω the value of C is

 250 pF.
 1000 pF.
 125 pF.
 500 pF.

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Electric Circuits
Two 1 kΩ, 1 W resistors are connected in series. Their combine resistance and wattage will be

 2 kΩ, 0.5 W.
 2 kΩ, 1 W.
 0.5 kΩ, 2 W.
 1 kΩ, 1 W.

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Electric Circuits
If the peak value of a sine wave is 100 V, then its RMS value will be

 63.6 V.
 70.7 V.
 88 V.
 100 V.

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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?

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

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Electric Circuits
A particular current is made up of two component : a 10 A and a sine wave of peak value 14.14 A. The average value of current is

 14.14 A.
 10 A.
 24.14 A.
 zero.

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MORE MCQ ON Electric Circuits

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