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Electric Circuits

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

 0.5.
 0.866.
 1.
 0.577.

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Electric Circuits
The mass of a neutron of atom is

 1.675 × 10 - 27 Kg.
 1.672 × 10 - 26 Kg.
 1.602 × 10 - 19 Kg.
 1.609 × 10 - 31 Kg.

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Electric Circuits
Which of the following represents the resonance frequency (ω0) with respect to lower cutoff frequency (ω1) and higher cutoff frequency (ω2)

 √(ω1² + ω2²)
 ω1 - ω2
 ω1 + ω2
 ω1 / ω2

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Electric Circuits
Which of the following has no units?

 Moment of a magnet
 Permittivity
 Magnetic susceptibility
 Permeability

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Electric Circuits
What is mean by flow of electrons?

 Electric current.
 Voltage.
 Semiconductor.
 Insulator.

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Electric Circuits
Which of the following Y-parameters is dimensionless?

 none of these.
 Y11.
 Y12.
 Y22.

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MORE MCQ ON Electric Circuits

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