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Electric Circuits

Electric Circuits
The electrical conductivity of metal is typically of the order of (in ohm - m)

 10 - 4.
 105.
 107.
 10 - 6.

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Electric Circuits
Two 1 kΩ, 1 W resistors are connected in series. Their combine resistance and wattage will be

 2 kΩ, 1 W.
 0.5 kΩ, 2 W.
 2 kΩ, 0.5 W.
 1 kΩ, 1 W.

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Electric Circuits
The laplace transform of the fuction f(t) = t is

 s2.
 s.
 1/s.
 1/s2.

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Electric Circuits
If c1 = 8 μF, c2 = 4 μF, c3 = 7 μF c1, c2 are in series with c3 in parallel; effective capacitance will be

 9.67 μF.
 3 μF.
 6 μF.
 2.21 μF.

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Electric Circuits
A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is

 10.
 0.4.
 0.85.
 1.

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Electric Circuits
When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is

 25 W.
 100 W.
 50 W.
 12.5 W.

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MORE MCQ ON Electric Circuits

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