Question

A 9V battery produces a 1.5A current in a piece of wire. What is the resistance of the wire?
8 Ω
9 Ω
6 Ω
7 Ω

Answer 1

Explanation:

Using Ohm's Law and a bit of substitution, we can use voltage divided by current to solve for resistance. Doing that, we'll get 6 Ohm.