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Electric Circuits

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

 0.316 A.
 0.1 A.
 0.01 A.
 1 A.

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Electric Circuits
The voltage across the 1kΩ resistor between the nodes A and B of the network shown in the given figure is

 2 V.
 -1 V.
 -2 V.
 1 V.

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Electric Circuits
Under resonance condition the power factor of a system is

 any of the above
 leading
 lagging
 unity

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Electric Circuits
The delta equation of given star connected impedance ZQR is equal to

 (20 + j10) Ω.
  (10 + j30) Ω.
 40 Ω.
 (5 + j10 / 3) Ω.

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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.

 30 mH.
 34 mH.
 38 mH.
 35 mH.

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Electric Circuits
A balanced 3 - φ star connected load is fed from a 208 V, 3 - φ supply. Each load has resistance of 35 Ω. The total power is

 1236 W.
 none of these.
 618 W.
 411.3 W.

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