AC Circuit objective questions (mcq) and answers
21. Unit of reactive power is
A. VA
B. Watt
C. VAR
D. Ohm
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C. VAR
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22. Skin effect occurs when a conductor carries current at.......... frequencies
A. Very low
B. Low
C. High
D. None of the above
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23. With the increase in applied frequency, the dielectric loss in a material will
A. Increase
B. Decrease
C. Remain constant
D. Become zero
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24. Real part of admittance is.......... and the imaginary part is........
A. Impedance, resistance
B. Resistance, impedance
C. Susceptance, inductance
D. Conductance, Susceptance
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25. Capacitive Susceptance is a measure of
A. A purely capacitive circuit's ability to pass current
B. A purely capacitive circuit's ability to resist the flow of current
C. The extent of neutralisation of reactive power in a circuit
D. Reactive power in a circuit
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