Question

Find the resistance of a fixed resistor in a circuit when the Ammeter reads 4 A and the p.d across the resistor is 12 V

Answer 1

Answer:

3 ohms

Explanation:

R = V/I

R = 12 ÷ 4

R = 3 ohms

Answer 2

So formula again V= IR
Potential difference = 12V
Current = 4 A
Resistance = V/I
= 12/4
= 3 ohms