Answer :
We understand than automotive electricity is based in a direct current system, so we can apply Ohm's law, which says R = V/I, where R is resistance, V is voltage and I is current.
R = 12 / 48 = 0.25 Ohm
Resistance = 0.25 Ohm
R = 12 / 48 = 0.25 Ohm
Resistance = 0.25 Ohm