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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
In series RLC circuit what is the power factor just above the resonance frequency?

 Unity
 Leading
 Zero
 Lagging

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Electric Circuits
Given network is having N nodes and b branches, then number of individual loops are

 N - 1.
 b - N - 1.
 N.
 b - N + 1.

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Electric Circuits
Which property is used to oppose the flow of current ?

 Inductance
 Capacitance
 Resistance
 Poteintial difference

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Electric Circuits
An electric field can deflect

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

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Electric Circuits
Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be

 40.25.
 76.66.
 36.36.
 66.66.

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