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ELECTRIC CIRCUITS

Electric Circuits
Electric flux is proportional to

 rate of change of current.
 resistivity of medium.
 rate of change of potential difference.
 potential difference between electrodes.

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Electric Circuits
An electric field can deflect

 alpha particles.
 x-rays.
 neutrons.
 gamma-rays.

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Electric Circuits
The unit of electric field intensity is

 N / Ampere.
 F / m.
 N / C.
 F/ m2.

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Electric Circuits
A 2m long conductor, carries a current of 50 A at a magnetic field of 100 × 10 − 3 T. The force on the conductor is

 10000 N.
 100 N.
 1000 N.
 10 N.

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Electric Circuits
The coils having self inductor of 10 mH and 15 mH have an effective inductor of 40 mH, when connected in series aiding. What will be the equivalent inductor if we connect them in series opposing

 10 mH.
 0 mH.
 5 mH.
 20 mH.

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