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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to

Average voltage
Peak voltage
None of the listed here
R.m.s. voltage

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AC Fundamentals, Circuit and Circuit Theory
Which of the following waves has the highest value of peak factor ?

Square wave
Triangular wave
Sine wave
Half wave rectified sine wave

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AC Fundamentals, Circuit and Circuit Theory
The phosphors for which of the following pair are 180° out of phase for VL, VC and VR?

VC and VR
VL and VR
None of these
VC and VL

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AC Fundamentals, Circuit and Circuit Theory
The period of a sine wave is ___________ seconds. Its frequency is

20 Hz
40 Hz
50 Hz
30 Hz

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AC Fundamentals, Circuit and Circuit Theory
Power factor of the following circuit will be zero

Both of the listed here
Resistance
Capacitance
Inductance

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AC Fundamentals, Circuit and Circuit Theory
The double energy transient occur in the

R-C circuit
Purely inductive circuit
R-L-C circuit
R-L circuit

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