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Electric Circuits

Electric Circuits
The life of a lead acid battery is expected to be

 6 months.
 10 to 15 years.
 2 to 5 years.
 1 year.

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Electric Circuits
The capacitance of a parallel plate capacitor can be varied by

 changing the distance between the plates only.
 changing the overlapping area of the plates only.
 changing the dielectric medium only.
All of these

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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

 100 N.
 10000 N.
 10 N.
 1000 N.

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Electric Circuits
A capacitor carries a charge of 0.3 C at 20 V. Its capacitance is

 15 μF.
 1.5 F.
 1.5 μF.
 0.015 F.

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Electric Circuits
Five capacitors each of 5 µF are connected in series, the equivalent capacitance of the system will be

 1 µF
 5 µF
 10 µF
 25 µF

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Electric Circuits
Condition of symmetry in Z-parameter representation is

 Z12 = Z21.
 Z11 = Z22.
 Z12 = Z22.
 Z11 = Z12.

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MORE MCQ ON Electric Circuits

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