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Electric Circuits

Electric Circuits
If N is the number of nodes and b is the number of branches in a network, then rank of tie set matrix is

 N - 1.
 b - N - 1.
 N.
 b - N + 1.

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Electric Circuits
In 2 port network Z12 = Z21 indicates which property

 bilateral.
 non linear.
 unilateral.
 linear.

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Electric Circuits
Resistor stores the energy in the form of

None of these
 both A and B.
 magnetic field.
 electrical field.

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Electric Circuits
A 3 – φ delta connected symmetrical load consumes P Watts of power from a balanced supply. If the same load is connected in star to the same supply then what is the power consumption?

 3P.
 P.
 P/3.
 √3P.

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Electric Circuits
Common impurity in battery electrolyte is

 iron.
 sodium chloride.
 lead sulfate.
 dust.

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Electric Circuits
When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is

 100 W.
 50 W.
 12.5 W.
 25 W.

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