Electric Circuit: Calculating Resistance of a Lamp

08 Oct 2022

What is the resistance of a lamp that draws a current of 0.50 A when connected to a 120 V source?

The resistance of the lamp can be calculated using Ohm's law formula. Let's solve for the resistance:

Ohm's law states that the voltage (V) across a resistor is equal to the current (I) flowing through it multiplied by the resistance (R) of the resistor. The formula is given by:

V = IR

We can rearrange the formula to solve for resistance:

R = V / I

Substitute the given values into the formula:

R = 120 V / 0.50 A = 240 Ω

Therefore, the resistance of the lamp is 240 ohms.

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What is the resistance of a lamp that draws a current of 0.50 A when connected to a 120 V source?

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