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Electric Circuits

Electric Circuits
A capacitor carries a charge of 0.1 C at 5 V. Its capacitance is

 0.2 F
 0.05 F
 0.5 F
 0.02 F

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Electric Circuits
If N is the number of nodes and b is the number of branches in a network, then rank of tie set matrix is

 b - N + 1.
 b - N - 1.
 N.
 N - 1.

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Electric Circuits
Which of the following Y-parameters is dimensionless?

 none of these.
 Y11.
 Y22.
 Y12.

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Electric Circuits
A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor?

 60 V.
 30 V.
 20 V.
 50 V.

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Electric Circuits
Time constant of RC series circuit is

 RC
 2L/R
 L/R
 2RC

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Electric Circuits
Two battery having unequal emf

 cannot be connected in series.
 can be connected in series only.
 cannot be connected in parallel.
 both a and d

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