Question

Masako measures a circuit at 12 V and 2 A. Using Ohm's law, what can he calculate for the circuit?

resistance ()
resistance (O)
current (I)
current ()

Answer 1

Using Ohm’s law V = IR, R = V/I = 12 V / 2 A = 6 Ω.

(You can also calculate power: P = VI = 12 V × 2 A = 24 W.)