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Electric Circuits

Electric Circuits
In series RLC circuit what is the power factor just bellow the resonance frequency?

 Lagging
 Leading
 Zero
 Unity

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Electric Circuits
The value of E within the field due to a point charge can be found with help of

 Coulombs law.
 Lenzs law.
 Faradays law.
 Kirchhoffs law.

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Electric Circuits
A series RLC circuit is connected across a 240V, 50 Hz supply. When the voltage across capacitor is 250V, a maximum current of 0.5A flows in the circuit. Find the resistance.

 500 Ohms.
 100 Ohms.
 480 Ohms.
 1000 Ohms.

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Electric Circuits
An alternating voltage = 140 sinθ is supplied to a device which offers a resistance of 20 Ω in forward direction of current in reverse direction. Calculate the form factor.

 0.318.
 0.57.
 1.11.
 1.414.

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Electric Circuits
Third pin of a 3 pin plug is thicker and longer

 all pins are of same size.
 for protection purpose.
 for designing purpose.
 none of these.

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Electric Circuits
200 resistors of 200 Ω each are connected in parallel. Their equivalent resistance will be

 1 Ω.
 4 kΩ.
 400 Ω.
 200 Ω.

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MORE MCQ ON Electric Circuits

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