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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
All the rules and laws of D.C. circuit also apply to A.C. circuit containing

Inductance only
All above
Capacitance only
Resistance only

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

Capacitance
Inductance
Both of the listed here
Resistance

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AC Fundamentals, Circuit and Circuit Theory
Two waves of the same frequency have opposite phase when the phase angle between them is

180°
0°
90°
360°

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AC Fundamentals, Circuit and Circuit Theory
Wire-wound resistors are unsuitable for use at high frequencies because they

Consume more power
Create more electrical noise
Exhibit unwanted inductive and capacitive effects
Are likely to melt under excessive eddy current heat

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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
The time constant of a series R-C circuit is given by

R2C
R/C
RC
RC2

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