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Electric Circuits

Electric Circuits
The unit of electric displacement vector is

 C/m2.
 C - m.
 Ampere-m.
 C/m.

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Electric Circuits
A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be –

 0.
 F.
 F εr.
 εr/F.

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Electric Circuits
Power factor can be defined as

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

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Electric Circuits
Poles and zeros are arranged alternatively on imaginary axis, then type of network is?

 RL network
 LC network
 RC network
 Any of the above

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Electric Circuits
The rms value of sine wave is 100 A. Its peak value is

 282.8 A.
 141.4 A.
 70.7 A.
 150 A.

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Electric Circuits
What is represented by the hypotenuse of impedance triangle?

 Resistance drop.
 Impedance drop.
 Reactance drop.
 Apparent power.

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MORE MCQ ON Electric Circuits

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