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Electric Circuits

Electric Circuits
Bulb in street lighting are connected in

 end of end.
 series.
 parallel.
 series parallel.

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Electric Circuits
The rms value of the resultant current in a wire which carries a DC current of 10A and a sinusoidal current of peak value 20A is

 22.4A.
 17.3A .
 30A.
 14.14A.

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Electric Circuits
In ac RC series circuit total voltage is 10V and voltage across resistor is 6V, then what is voltage across capacitor?

 4V
 16V
 10V
 8V

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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 μsec
 4 μsec
 4 msec
 2 msec

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Electric Circuits
An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are

 40 Ω and 40 Ω.
 25 Ω and 5 Ω.
 50 Ω and 200 Ω.
 40 Ω and 200 Ω.

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Electric Circuits
In the circuit shown in figure if I1 = 1.5 A, then I2 will be

 2 A.
 1 A.
 0.5 A.
 1.5 A.

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MORE MCQ ON Electric Circuits

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