Question

In an a.c circuit, peak value of voltage is 423 volts, its effective voltage is ______.

पर्याय

• 400 V

• 323 V

• 300 V

• 340 V

Answer 1

In an a.c circuit, peak value of voltage is 423 volts, its effective voltage is 300 V.

Explanation:

As we know,

The effective voltage is `"V"_"rms" = "V"_0/sqrt2`

`"V"_"rms" = 423/sqrt2 = 300`V