Question

1-A lamp draws a current of 0.50 A when it is connected to a 120 V source.
a) What is the resistance of the lamp?

Answer 1

Hi there!

We can use Ohm's law to solve for the resistance of the lamp.

$V = IR$

V = Voltage (V)
I = Current (A)
R = Resistance (Ω)

We can rearrange to solve for resistance.

$R = \frac{V}{I}$

Plug in the given values:

$R = \frac{120}{0.5} = \boxed{240 \Omega}$