Question

An automobile light has a 1.0-a current when it is connected to a 12-v battery. determine the resistance of the light.

Answer 1

Resistance of automobile light is equal to 12 ohms.
Resistance = Voltage / Current
where
Voltage = 12 volts
Current = 1.0 Amperes
Resistance = 12 volts/ 1.0 amperes
Resistance = 12 ohms.
Automobile light has 12 ohms resistance when it is connected to 12volts battery with 1.0 ampere current.