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?

Respuesta :

Answer:

110V

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