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A light bulb is rated 100 W for 220 V ac...

A light bulb is rated 100 W for 220 V ac supply of 50 Hz. Calculate
the rms current throught the bulb

Text Solution

Verified by Experts

200 V = rms supply voltage = equivalent dc voltage
`I_("rms")=(V_("rms"))/(R)=(220)/(484)~~0.45A`
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