Question

an electric bulb is connected to a 220v power supply line.if the bulb draws a current of 0.5ampere,calculate the power of bulb

Answer 1

Explanation:

given

V = 220 v

I = .5 am

formula P= V x I

by putting value

P = 220 x .5

P= 220 x 5/10

P= 22 x 5

P= 110 watt

Answer 2

Answer:

The power of the bulb is 110 watts.

Explanation:

The power of an electrical element is calculated as,

$P=V\times I$        (1)

Where,

P=power of the element

V=voltage across the element

I=current through the element

From the question we have,

The voltage across the bulb= 220 volt

The current through the bulb= 0.5A

By placing the values in equation (1) we get;

$P=220\times 0.5$

$P=110 Watt$

Hence, the power of the bulb is 110 watts.

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