A direct current power supply is connected to a circuit containing one resistor,and 1.5 A is drawn.If a second identical resistor is connected to the power supply in series with the first,how much current is drawn from the battery?
A)3.0 A
B)0.75 A
C)1.5 A
D)6.0 A

Question

Quizplus · Accepted Answer

When an identical resistor is connected in series with the first one, the resistance of the circuit doubles. According to Ohm's Law (V=IR), if the same voltage is applied to a circuit with double the resistance, the current flowing through the circuit will decrease by half. Therefore, the current drawn from the battery will be 0.75 A.

A Direct Current Power Supply Is Connected to a Circuit