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Electric Circuits

Electric Circuits
Which of the following quantities remain the same in all parts of a parallel circuit

 current.
 power.
 resistance.
 voltage.

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

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

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Electric Circuits
The mass of a proton is

 1.672 × 10 - 27 Kg.
 1.675 × 10 - 27 Kg.
 1.609 × 10 - 31 Kg.
 1.602 × 10 - 19 Kg.

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Electric Circuits
The maximum value of a current wave is 2A. If the form factor of a current wave is 1.5 and the peak factor is 2.7, find the rms value in Amperes.

 0.494 A.
 0.741 A.
 1.57 A.
 1.414 A.

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.577.
 0.866.
 1.
 0.5.

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Electric Circuits
If c1 = 8 μF, c2 = 4 μF, c3 = 7 μF c1, c2 are in series with c3 in parallel; effective capacitance will be

 3 μF.
 9.67 μF.
 6 μF.
 2.21 μF.

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