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Electric Circuits

Electric Circuits
Which of following capacitors has relatively shorter shelf life?

 Electrolytic.
 both (B) and (C) above.
 Paper.
 Glass.

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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 current in the circuit?

 0.2547 A.
 0.1465 A.
 0.4583 A.
 0.1578 A.

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Electric Circuits
Reactive power drawn by a pure resistor is

None of these
 minimum
 0
 maximum

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Electric Circuits
A capacitor

 passes both AC and DC.
 passes AC but blocks DC.
 passes DC but blocks AC.
 blocks both AC and DC.

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Electric Circuits
For occurrence of resonance which of the following elements are required?

 Both 2 and 3
 C
 R
 L

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Electric Circuits
The current in the resistor R shown in figure will be

 0.4 A.
 0.6 A.
 0.8 A.
 0.2 A.

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