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Electric Circuits

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

 1.285.
 2.9585.
 2.585.
 2.185.

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Electric Circuits
Which of the following materials has highest electrical conductivity ?

  Silver.
  Aluminium.
  Steel.
  Copper.

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Electric Circuits
Sulphation in a lead acid battery occurs due to

 heavy charging.
 trickle charging.
 fast charging.
 incomplete charging.

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Electric Circuits
There is a ________ between two nodes of signal flow graph

 tree
 link
 branch
None of these

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Electric Circuits
A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest?

 1 Hz.
 100 Hz.
 1000 Hz.
 10 Hz.

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Electric Circuits
Condition of reciprocity in Y-parameter representation is

 Y11 = Y22.
 Y12 = Y21.
 Y12 = Y22.
 Y11 = Y12.

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