High School Physics

Question

Two dry cells in a flashlight produce 24 v. The dry cells carry a current of 3 amps. What is the resistance of the flashlight?

Answer 1

From Ohm's law, voltage = current * resistance or

V = IR

For this problem, V = 24 and I = 3, so

V = IR

24 = 3R

Solve for R to find the resistance