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Electric Circuits

Electric Circuits
A external resistance R is connected to a cell of internal resistance r, then the current is maximum when

 R < r.
None of these
 R = r.
 R > r.

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Electric Circuits
Unit step function is first derivative of

 parabolic function.
 gate function.
 ramp function.
 impulse function.

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Electric Circuits
You have to replace 1500 Ω resistor in radio. You have no 1500 Ω resistor but have several 1000 Ω ones which you would connect

 two in parallel and one in series.
 three in parallel.
 three in series.
 two in parallel.

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Electric Circuits
Internal resistance of ideal voltage source is

 finite
 infinite
 zero
 100 ohms

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Electric Circuits
1 F is theoretically equal to

 ratio of 1 V to 1 C
 none of these
 1 ohm of resistance
 ratio of 1 C to 1 V

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Electric Circuits
In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant?

 2 msec
 4 msec
 4 μsec
 2 μsec

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MORE MCQ ON Electric Circuits

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