Time Left:
600
sec
3. What is time constant
A. characteristic time with which current grows and decays
B. the time current takes to reach the minimum value only
C. time for the complete cycle
D. the time current takes to reach the peak value only
8. The only component that dissipates energy in ac circuit is:
A. Capacitor
B. Inductor
C. Resistors
D. None of these
9. Which is more dangerous?
A. 220 V a.c
B. 220 V d.c
C. Both 220 V a.c. and 220 V d.c
D. Both 220 V a.c. and 220 V d.c. are not dangerous
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