Question

Solve for Voltage

The current through a lightbulb is 0.5 A. The resistance of the
lightbulb is 220 2. What is the voltage across the lightbulb?

Answer 1

110V

Step-by-step explanation:

Given parameters:

Current in the lightbulb = 0.5A

Resistance = 220Ω

Unknown:

Voltage = ?

Solution:

To solve this problem, we apply the equation derived from ohm's law;

V = IR

So,

V = 0.5 x 220 = 110V