A potential difference of 9.0 V produces a current of 0.75 A in a piece of copper wire. What is the resistance of the wire?

Answer 1

We can use Ohm's law to solve for the resistance of the copper wire:

Ohm's Law: V = I × R

where V is the potential difference (in volts), I is the current (in amperes), and R is the resistance (in ohms).

Rearranging this equation, we get:

R = V / I

Substituting the given values, we get:

R = 9.0 V / 0.75 A

R = 12 ohms

Therefore, the resistance of the copper wire is 12 ohms.