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Electric Circuits

Electric Circuits
Time constant of RL series circuit is

 RC
 L/R
 2RC
 2L/R

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Electric Circuits
A 35 V source is connected to a series circuit of 600 Ω and R as shown. If a voltmeter of internal resistance 1.2 kΩ is connected across 600 Ω resistor, it reads 5 V. The value of R is

 3.6 k Ω.
 1.2 k Ω.
 7.2 k Ω.
 2.4 k Ω.

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Electric Circuits
What is represented by the hypotenuse of impedance triangle?

 Reactance drop.
 Resistance drop.
 Impedance drop.
 Apparent power.

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Electric Circuits
A constant current source supplies a electric current of 300 mA to a load of 1 KΩ. When the load changed to 100 Ω, the load current will be

 3 A.
 30 mA.
 300 mA.
 100 mA.

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Electric Circuits
Given network is having N nodes and b branches, then number of individual loops are

 b - N + 1.
 b - N - 1.
 N.
 N - 1.

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Electric Circuits
Voltage magnification will occur in which of the following case?

 Parallel resonance
 Series resonance
 Both
None of these

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MORE MCQ ON Electric Circuits

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