When a 12-volt car battery is short circuited with a wire,the current drawn from the battery is 100 amperes.The resistance of the wire is
A)zero.
B)0.12 ohms.
C)100/12 = 8.33 ohms.
D)1200 ohms.
E)none of the above.

Question

Quizplus · Accepted Answer

According to Ohm's Law, V = IR, where V is the voltage, I is the current, and R is the resistance. In this case, V = 12 volts and I = 100 amperes, so R = V/I = 12/100 = 0.12 ohms. Therefore, the best choice is B.

When a 12-Volt Car Battery Is Short Circuited with a Wire,the