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Electric Circuits

Electric Circuits
To obtain a high value of capacitance, the permittivity of dielectric medium should be

 high
 low
 zero
 unity

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Electric Circuits
Internal resistance of ideal voltage source is

 100 ohms
 finite
 zero
 infinite

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Electric Circuits
The alternative names for active power is/are

 average power.
 true power.
All of these
 real power.

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Electric Circuits
A star connected load has three equal impedance each of (40 + j30) Ω If the line current is 5 A then value of line voltage is

 250 √3 V.
 200 V.
 250 V.
 250 / √3 V.

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Electric Circuits
Consider the following circuit. What is the value of current I in the 5 Ω resistor in the circuit given in the figure?

 4 A.
 3 A.
 2 A.
 0 A.

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Electric Circuits
A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the current in the circuit?

 0.4583 A.
 0.1578 A.
 0.1465 A.
 0.2547 A.

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MORE MCQ ON Electric Circuits

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