6. In an A.C. circuit power is dissipated in ________.
(a) resistance only
(b) inductance only
(c) capacitance only
(d) noneoftheabove
7. The time constant of the capacitance circuit is defined as the time during which voltage ________.
(a) falls to 36.8% of its final steady value
(b) rises to 38.6% of its final steady value
(c) rises to 63.2% of its final steady value
(d) noneoftheabove
8. For a frequency of 200 Hz, the time period will be ________.
(a) 0.05 s
(b) 0.005 s
(c) 0.0005 s
(d) 0.5s
9. Power factor of the following circuit will be unity ________.
(a) inductance
(b) capacitance
(c) resistance
(d) both(a)and(b)
10. Power factor of the following circuit will be zero ________.
(a) inductance
(b) capacitance
(c) resistance
(d) both(a)and(b)
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