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Electric Circuits

Electric Circuits
A coil with negligible resistance has 50 V across it with 10 mA. The inductive reactance is

 50 ohms.
 1000 ohms.
 5000 ohms.
 500 ohms.

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Electric Circuits
Inductor does not allow the sudden change of

None of these
 power
 current
 voltage

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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

 6 A.
 10 A.
 8 A.
 12 A.

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Electric Circuits
The voltage across R and L in a series RL circuit are found to be 200 V and 150 V respectively the rms value of the voltage across the series combination is ______ V.

 360
 450
 200
 250

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Electric Circuits
Electrics supply for electroplating should be

 low AC voltage.
 DC voltage.
 low frequency ac voltage.
 any of above.

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Electric Circuits
The electrical conductivity of metal is typically of the order of (in ohm - m)

 10 - 4.
 10 - 6.
 105.
 107.

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MORE MCQ ON Electric Circuits

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