If a current of 2 amps is moving through a circuit connected to a 9 V battery, what is the resistance of the circuit?
7 ohms
4.5 ohms
18 ohms
0.2 ohms
?
E = volts = 9 v = voltage
I = 2 amperes = current
R = E/I = 9/2 = ? ohms resistance.
4.5 ohms
18 ohms
0.2 ohms
?
I = 2 amperes = current
R = E/I = 9/2 = ? ohms resistance.