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Electric Circuits

Electric Circuits
Which cell has the reversible chemical reaction?

 Lead acid.
 Silver oxide.
 Carbon Zinc.
 Mercury oxide.

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Electric Circuits
A variable capacitance is one whose capacitance

 changes with voltage.
 changes with temperature.
 can be changed manually or by mechanical force.
 changes with time.

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Electric Circuits
Consider the following circuit. In this circuit, when Vs = 3 V, I = 4 A, what is the value of I when Vs = 12 V?

 7 A.
 10 A.
 15 A.
 20 A.

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Electric Circuits
If P is the power of a star connected system then what will be power of an equivalent delta connected system?

None of these
 3P
 P/3
 P

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Electric Circuits
The unit of electric field intensity is

 N / C.
 F / m.
 F/ m2.
 N / Ampere.

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Electric Circuits
In the given figure the value of the source voltage is

 30 V.
 44 V.
 24 V.
 12 V.

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MORE MCQ ON Electric Circuits

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