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Electric Circuits

Electric Circuits
The value of specific gravity of acid when a lead acid battery is fully charged is

 2.585.
 2.9585.
 2.185.
 1.285.

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Electric Circuits
The frequency of EMF generated by a generator depends upon its

 both speed and number of poles.
 nature of supply.
 number of poles.
 speed.

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Electric Circuits
In question no.3, which of the following is true ?

 ic (0+) = i(0+).
 iL(0) = ic (0).
 None of these.
 i(0+)= iL(0+).

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is

 5.08 A.
 10.16 A.
 1.27 A.
 2.54 A.

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Electric Circuits
For symmetrical wave form average value of one full cycle is

 1.11
 0
 1
 2.22

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Electric Circuits
Which cell has the reversible chemical reaction?

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

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MORE MCQ ON Electric Circuits

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