When a certain a.c supply is connected to a lamp, it lights with the same...
PHYSICS
JAMB 2006
When a certain a.c supply is connected to a lamp, it lights with the same brightness as it does with a 12 V d.c battery. Then r.m.s value of the a.c supply is?
- A) 12.0 V
- B) 3.5 V
- C) 17.0 V
- D) 8.5V
Correct Answer: A) 12.0 V
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