Questions
A bulb is connected first with dc and then ac of same voltage then it will shine brightly with
detailed solution
Correct option is D
Brightness ∝Pconsumed∝1R for Bulb, Rac=Rdc, so brightness will be equal in both the cases.Talk to our academic expert!
Similar Questions
When an ac source of e.m.f. is connected across a circuit, the phase difference between the e.m.f. e and the current i in the circuit is observed to be , as shown in the diagram. If the circuit consists possibly only of RC or LC in series, find the relationship between the two elements
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