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Electric Circuits

Electric Circuits
The electrical conductivity of metal is typically of the order of (in ohm - m)

 107.
 10 - 4.
 105.
 10 - 6.

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Electric Circuits
Which property is used to oppose the flow of current ?

 Resistance
 Poteintial difference
 Inductance
 Capacitance

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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?

 P/3.
 3P.
 P.
 √3P.

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Electric Circuits
Five cells are connected in series in a row and then four such rows are connected in parallel to Feed the current to a resistive load of 1.25Ω. Each cell has an emf of 1.5 V with internal resistance Of 0.2Ω. The current through the load will be

 3.33 A
 5 A
 23.33 A
 1 A

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Electric Circuits
KCL works on the principle of which of the following

 law of conservation of energy.
None of these
 law of conservation of charge.
 both.

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

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

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MORE MCQ ON Electric Circuits

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