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Electric Circuits

Electric Circuits
In the circuit shown below, find the thevnin equivalent resistance.

 5 Ohm.
 6/5 Ohm.
 1.5 Ohm.
 5/6 Ohm.

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Electric Circuits
To reduce hysteresis loss, we use

 soft-iron.
 CRGO steel.
 copper bars.
 laminated sheets.

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Electric Circuits
The ratio of intensity of magnetisation to the magnetising force is known as

 susceptibility.
 relative permeability.
 none of above.
 flux density.

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Electric Circuits
Two wires of A and B of the same material and length ‘l’ and ‘2l’ have radius ‘r’ and ‘2r’ respectively. The ratio of their specific resistance will be

 4:1.
 1:8.
 1:1.
 1:2.

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Electric Circuits
Common impurity in battery electrolyte is

 iron.
 lead sulfate.
 dust.
 sodium chloride.

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Electric Circuits
Given network is having N nodes and B branches, then number of twigs are

 N - 1.
 B - N - 1.
 N.
 B - N + 1.

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