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Electric Circuits

Electric Circuits
What is the frequency of domestic power in India?

 70 Hz.
 50 Hz.
 60 Hz.
 220 Hz.

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Electric Circuits
An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance.

 zero, zero
 infinite, zero
 infinite, infinite
 zero, infinite

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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?

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

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Electric Circuits
The energy required to charge a 10 μF capacitor to 100 V is

 5 × 10-9 J.
 0.05 J.
 0.01 J.
 10 × 10-9 J.

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Electric Circuits
Active filter consists of

 op-amp and capacitor.
 op-amp.
 capacitor.
 inductor.

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Electric Circuits
Average power taken by the pure capacitor is

 Zero
 Maximum
 Any of the above
 Minimum

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MORE MCQ ON Electric Circuits

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