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Electric Circuits

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

 11 W.
 1 W.
 24.5 W.
 21 W.

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Electric Circuits
Active filter consists of

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

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Electric Circuits
A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA.

 400
 130
 900
 250

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Electric Circuits
An electric field line and an equipotential surface are

 always perpendicular.
 none of above.
 always parallel.
 inclined at any angle.

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Electric Circuits
The ratio of intensity of magnetisation to the magnetising force is known as

 none of above.
 susceptibility.
 flux density.
 relative permeability.

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Electric Circuits
The internal resistance of a practical voltage source is considered to be connected in

 series.
None of these
 parallel.
 either parallel or series.

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MORE MCQ ON Electric Circuits

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