Question

resistance of a 100 watt bulb in a 120 volts circuit is​

Answer 1

Answer:

144Ω

Explanation:

P = VI

∴ I = P/V => (100/120) A

Now, V = IR                      (Ohm's Law)

∴ R = V/I => 120/(100/120)

=> (120*120)/100

=> 14400/100 => 144Ω