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Electric Circuits

Electric Circuits
In the circuit given, I = 1 A for Is = 0. What is the value of I for Is = 2 A ?

  2 A.
 1 A.
 4 A.
 3 A.

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

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

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Electric Circuits
Total instantaneous power supplied by a 3 - φ AC supply to a balanced RL load is

 pulsating with non zero average.
 pulsating with zero average.
 zero.
 constant.

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Electric Circuits
A periodic voltage having the Fourier series V(t)= {1 + 4sinω0t}

 21 W.
 11 W.
 24.5 W.
 1 W.

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Electric Circuits
In the given figure, the Thevenins equivalent voltage and impedance as seen from the terminals P - Q is given by

 2 V and 7.5 Ω.
 4 V and 5 Ω.
 4 V and 7.5 Ω.
 2 V and 5 Ω.

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

 0
 Both
None of these
 ∞

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