Question

Calculate the resistance of an electric bulb is uses 15 a current when connected to a 220 volt source

Answer 1

Explanation:

Soln: I = 15A, V=220V

Resistance=V/I

=220/15

=14.6

Answer 2

Answer:

The answer to the given question is 14.66 ohms.

Explanation:

Given :

current used by the bulb I = 15 amperes.

the voltage source in the bulb V = 220 volt.

To find :

Resistance of an electric bulb

Formula :

The formula to be used here is

According to Ohm's law

V = IR

R = V/I.

where R is the resistance

we have to use the second formula because we have to find the resistance of the bulb.

substituting the known values in the given formula, we get the answer as

$resistance = \frac{220}{15}$

The value obtained in the division is 14.66 ohms.

Therefore, the final answer to the given question is

the resistance of an electric bulb uses 15 a current when connected to a 220-volt source is 14.66 ohms.

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