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Electric Circuits

Electric Circuits
In which of the following oscillations are not present?

 Under damping
 Over damping
 Critical damping
 Both 2 and 3

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.5.
 0.577.
 0.866.
 1.

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Electric Circuits
In series RLC circuit what is the power factor just bellow the resonance frequency?

 Lagging
 Unity
 Zero
 Leading

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Electric Circuits
Transients are presents in the circuit when the circuit is having

 Either L or C.
 R.
 L.
 C.

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Electric Circuits
A rectangular magnet of magnetic moment M is cut into two pieces of same length. The magnetic moment of each piece will be

 2 M.
 M / 2.
 M / L.
 M.

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Electric Circuits
Power factor can be defined as

 sine of voltage and current.
 cosine of angle between voltage and current.
 ratio of resistance versus impedance.
 both option B and C.

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