# AC Fundamentals – 1 – 4

16. In a certain series RC circuit, the true power is 2 W, and the reactive power is 3.5 VAR. What is the apparent power ?

(a) 3.5 VA
(b) 2 VA
(c) 4.03 VA
(d) 3 VA

EXPLANATION
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17. A power factor of ‘1’ indicates :

(a) purely resistive circuit
(b) purely reactive circuit
(c) combination of both, a and b
(d) none of these

EXPLANATION
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18. To which component in an RC circuit is the power dissipation due ?

(a) capacitance
(b) resistance
(c) both
(d) none

EXPLANATION
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19. A power factor of 0 indicates :

(a) purely resistive element
(b) purely reactive element
(c) combination of both a and b
(d) none of the above

EXPLANATION
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20. True power is defined as :

(a) VI cos θ
(b) VI
(c) VI sin θ
(d) none of these

EXPLANATION
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