Question

An electric tungsten bulb is
connected into a home circuit. The home electric supply runs at 220V potential difference. When switched on, a current of 0.45A flows through the bulb. What must be power
(wattage) of the bulb? If it is kept on for 10 hours, how many units of electricity will be consumed?​

Answer 1

Explanation:

When an electric tungsten bulb is

connected into a home circuit. The home electric supply runs at 220V potential difference. When switched on, a current of 0.45A flows through the bulb.

given., voltage = 220V

current = 0.45A

we know that , power = voltage × current

P = VI

P = 220 × 0.45

P = 99 watts

we know that ,

energy consumption = Pt

E = 99×10×60×60

E = 3.564 × 10^6 J

Answer 2

Answer:

99 W

Explanation:

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