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ELECTRIC CIRCUITS

Electric Circuits
Two sinusoidal quantities are said to be in phase quadrature, when their phase difference is

 90o.
 0o.
 45o.
 30o.

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Electric Circuits
The equation for 25 cycles current sine wave having rms value of 30 amps, will be

 42.4sin50πt.
 30sin50πt.
 30sin25πt.
 42.4sin25πt.

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Electric Circuits
What will be the rms value of rectangular wave with amplitude 10 V?

 7.7 V.
 10 V.
 11.2 V.
 5√2 V.

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Electric Circuits
The rms value of sinusoidal voltage wave V = 200sinω0t

 100√2 V.
 100 V.
 200 V.
 200√2 V.

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Electric Circuits
If one cycle of AC waveform occurs every millisecond, the frequency will be

 1000 Hz.
 100 Hz.
 10 kHz.
 50 Hz.

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