When an alternating current passes through an ohmic resistance the electrical power converted into heat is
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The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of ________ degrees.
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The purpose of a parallel circuit resonance is to magnify
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The safest value of current the human body can carry for more than 3 second is
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In a highly capacitive circuit the
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An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms,
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Poor power factor
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Form factor for a sine wave is
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The frequency of domestic power supply in India is
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Pure inductive circuit
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In a pure inductive circuit
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In a pure resistive circuit
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Capacitors for power factor correction are rated in
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The power consumed in a circuit element will be least when the phase difference between the current and voltage is
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Which of the following statements pertains to resistors only?
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In a series L-C circuit at the resonant frequency the
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In a circuit containing R, L and C, power loss can take place in
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The best place to install a capacitor is
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All definitions of power factor of a series R-L-C circuit are correct except
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The frequency of an alternating current is
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