An electric bulb operates at 12 V d.c. I...

An electric bulb operates at 12 V d.c. If this bulb is connected to an a.c. source and gives normal brightness, what would be the peak value of the source ?

12V

24V

`12sqrt(2)V`

`12/(sqrt2)V`

Text Solution

Verified by Experts

The correct Answer is:

12 volt is the r.m.s. voltage
`:.` Peak voltage `=12sqrt(2) V`

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