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Electric Circuits

Electric Circuits
In RL series circuit R=2Ω and L=2mH. What is the value of time constant?

 100sec
 2msec
 4msec
 1msec

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Electric Circuits
Dependent source of current and voltage are those which have

 unidirectional characteristic.
All of these
 independent of any other network variable.
 output dependent on input.

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Electric Circuits
The life of a lead acid battery is expected to be

 6 months.
 10 to 15 years.
 2 to 5 years.
 1 year.

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Electric Circuits
How many 200W / 220V bulbs connected in series across 220V supply will consume 100W?

 2.
 Not possible.
 4.
 1.

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Electric Circuits
What is the reactive power in AC operation?

 Real power × sinθ.
 Real power × cosθ.
 Apparent power × sinθ.
 Apparent power × cosθ.

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Electric Circuits
A branch of a network is said to be passive when it contains

 voltage source.
 battery.
 current source.
 voltmeter.

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MORE MCQ ON Electric Circuits

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