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Electric Circuits

Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is

 10.16 A.
 1.27 A.
 2.54 A.
 5.08 A.

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Electric Circuits
Which of following is the unit of magnetic flux density?

 Daraf.
 Lumens.
 Tesla.
 Weber.

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Electric Circuits
Two wires of A and B of the same material and length ‘l’ and ‘2l’ have radius ‘r’ and ‘2r’ respectively. The ratio of their specific resistance will be

 1:8.
 1:2.
 4:1.
 1:1.

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Electric Circuits
In the circuit shown in the figure the voltage across the 2 Ω resistor is

 4 V.
 2 V.
 3 V.
 1 V.

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Electric Circuits
A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest?

 1000 Hz.
 10 Hz.
 1 Hz.
 100 Hz.

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Electric Circuits
In parallel RC circuit total current is 5A and current through resistor is 3A. What is the current through capacitor?

 5A
 2A
 3A
 4A

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MORE MCQ ON Electric Circuits

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