Question

An electric bulb is rated 100 watt when used on 220 volts main. Find the resistance of the bulb

Answer 1

✨✨✨FORMULA✨✨✨

$p = \frac{v {}^{2} }{r} \\ r = \frac{v {}^{2} }{p} \\ r = \frac{220 \times 220}{100} \\ r = 484 \: ohm$

Answer 2

Answer:

Explanation:

Just apply the formula,refer the pic