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Electric Circuits

Electric Circuits
For same voltage, the ratio resistance of 100 W lamp to resistance of 25 W lamp is

 1/4.
 16.
 1.
 4.

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Electric Circuits
Condition of symmetry in Z-parameter representation is

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

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Electric Circuits
The absolute charge of an electron is

 - 1.6 × 10-19 C.
 1.6 × 10-19 C.
 + 1.6 × 10-19 C.
 none of above.

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Electric Circuits
Capacitors for P.f correction are rated in

 KVA.
 KVAR.
 KW.
 KV.

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

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

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Electric Circuits
An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance.

 infinite, zero
 zero, zero
 infinite, infinite
 zero, infinite

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