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Electric Circuits

Electric Circuits
Atoms with fewer than 4 valence electrons are

 none of these.
 insulator.
 conductor.
 semi-conductor.

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Electric Circuits
The efficiency in case of maximum power transfer theorem is

 50 % - 100 %.
 100 %.
 less than 50 %.
 50 %.

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Electric Circuits
Mica capacitor are characterised by all of following except

 stable operation.
 low leakage reactance.
 accurate value.
 low losses.

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Electric Circuits
If the dielectric of a capacitor is replaced by conducting material

 the capacitor will get heated up due to eddy currents.
 the capacitor can store infinite charge.
 the capacitance value of the plate will decrease.
 the plate will get short circuited.

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Electric Circuits
In RL series circuit R=2Ω and L=2mH. What is the value of time constant?

 4msec
 2msec
 1msec
 100sec

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Electric Circuits
Kirchhoff’s voltage law is used for

 finding equivalent resistance.
 loop analysis.
 nodal analysis.
 representing a current source.

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MORE MCQ ON Electric Circuits

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