romybhagwatkarrb romybhagwatkarrb

20-02-2021
Physics

contestada

An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the
power consumed will be-
(a) 100 W
(b) 75 W
(c) 50 W
(d) 25 W

Respuesta :

yamunasasidharan0808 yamunasasidharan0808

20-02-2021

Answer:

50 W

Explanation:

Case 1

Power = V * I

100 = 220 * I

I = [tex]\frac{100}{220}[/tex] A

Case 2

P = V * I

P = 110 * [tex]\frac{100}{220}[/tex]

P = 50 W

I think the answer is 50 W

Hope it helps

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