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Electric Circuits

Electric Circuits
Absolute permittivity of dielectric medium is represented as

 εrε0
 ε0
 εr/ε0
 εr

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Electric Circuits
The equation for 25 cycles current sine wave having rms value of 30 amps, will be

 42.4sin50πt.
 30sin25πt.
 30sin50πt.
 42.4sin25πt.

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Electric Circuits
Current locus is obtained by which of the following?

 Either of these
 Varying source frequency
 Varying any one of the circuit element
None of these

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Electric Circuits
In the circuit shown in the figure, the value of Vs is 0, when I = 4 A. The value of I, when Vs = 16 V, is

 12 A.
 8 A.
 6 A.
 10 A.

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Electric Circuits
When the battery is being charged, the terminal voltage decreases with

 increasing state of charge.
 none of these.
 increasing temperature.
 increasing charging rate.

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Electric Circuits
A circuit contains two unequal resistor in parallel

 voltage drops are according to their resistive value.
 voltage drops across both are same.
 currents in both are same.
 heat losses in both are same.

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MORE MCQ ON Electric Circuits

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