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Electric Circuits

Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 0.01 A.
 0.316 A.
 1 A.
 0.1 A.

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Electric Circuits
Bulb in street lighting are connected in

 series parallel.
 parallel.
 series.
 end of end.

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Electric Circuits
In a series R, L circuit, voltage across resistor and inductor are 3 V and 4 V respectively, then what is the applied voltage?

 7V
 5V
 4V
 3V

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Electric Circuits
In an AC circuit, containing pure inductance, the voltage applied is 120 V, 50 Hz while the current is 10 A. Find the value of inductance.

 38 mH.
 30 mH.
 34 mH.
 35 mH.

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Electric Circuits
An electric field line and an equipotential surface are

 always perpendicular.
 none of above.
 inclined at any angle.
 always parallel.

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Electric Circuits
If a resistor is connected across the voltage source and the frequency of voltage and current wave form is 50Hz, then what is frequency of instantaneous power

 50 Hz.
 150 Hz.
 100 Hz.
 0 Hz.

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