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Electric Circuits

Electric Circuits
The maximum current rating for a 10 k Ω, 0.5 W resistor is

 28.28 mA.
 7.07 mA.
 0.707 mA.
 14.14 mA.

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Electric Circuits
What is the real power in AC operation?

 Both option A and B.
 VIcosφ.
 Apperant power × cosφ.
 None of these.

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Electric Circuits
Image impedance can be written by using short circuit impedance(Zsc)and open circuit impedance(Zoc) as

  (Zsc . Zoc)½
 Zsc-Zoc
 Zsc/Zoc
 Zsc+Zoc

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Electric Circuits
The capacitance of a conductor is varying from 2 microfarad to zero in 1 sec linearly if the voltage applied to it is 6 V the energy stored in 0.5 sec in the condenser is

 18 µ joules.
 10 µ joules.
  55.1 µ joules.
 20 µ joules.

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Electric Circuits
In series RLC circuit, voltage across resistor, inductor and capacitor are 5V, 2V and 2V respectively. Find total voltage?

 9V
 4V
 2V
 5V

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Electric Circuits
Reactive power drawn by a pure resistor is

None of these
 maximum
 0
 minimum

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