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please answer

Asked by Anjanasubhash 13th March 2010, 10:29 AM
Answered by Expert
Answer:

12V, 48 W,

P = V2/R

R = P/V2 = 48/(12)2 = 48/144 =  0.33 Ω.

So the normal maximum electric current is, 12/0.33 = 36 A

Now if it's connected across 230 V.

I = V/R = 230/0.33 = 690 A, which is a tremendous amount of current, and the car head lamp will blow up

instantly.

Regards,

Team,

TopperLearning.

Answered by Expert 13th March 2010, 3:46 PM
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