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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
Capacitors for power factor correction are rated in

kV
kVAR
kW
kVA

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AC Fundamentals, Circuit and Circuit Theory
In a pure inductive circuit

The current can lead or lag by 90°
The current leads the voltage by 90°
The current is in phase with the voltage
The current lags behind the voltage by 90°

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AC Fundamentals, Circuit and Circuit Theory
The safest value of current the human body can carry for more than 3 second is

4 mA
15 mA
5 mA
9 mA

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AC Fundamentals, Circuit and Circuit Theory
For a sine wave with peak value Emax ___________ the average value is

0.707 Emax
0.636 Emax
0.434 Emax
None of the listed here

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

Capacitance
Resistance
Inductance
None of the listed here

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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

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

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