In an A.C. circuit, a low value of kVAR compared with kW indicates –
In A.C. circuit laminated iron is invariably used in order to –
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The ratio of active power to apparent power is known as ...... factor.
In a parallel R-C circuit, the current always .... the applied voltage.
At very two frequencies a series R-C circuit behaves as almost purely .....
The power taken by a 3 - f load is given by the expression –
For the full wave rectified sine wave the r.m.s. value is –
Which of the following waves has the highest value of peak factor ?
The product of apparent power and cosine of the phase angle between circuit voltage and current is –
While drawing vector diagram for a series circuit the reference vector is
In A.C. circuit the power curve is a sine wave having–
The ratio of the bandwidth to the resonance frequency is called the......of the circuit.
A network is said to be non-linear if it does not satisfy –
23 videos|89 docs|42 tests
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23 videos|89 docs|42 tests
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