Question

A resistor, a motor and a switch are connected in series to a 240 V power supply. When the switch is closed, a current of 4 A flows through the resistor. What can be said about the current through the motor?

Answer 1

In a series circuit, the current is the same across all components, so the current through the motor would also be 4 A.

Step-by-step explanation:

When a resistor, a motor, and a switch are connected in series to a 240 V power supply, and a current of 4 A flows through the resistor, we can conclude that the current through the motor is also 4 A. This is because in a series circuit, the current is the same through all components. The current only divides in a parallel circuit. Therefore, whatever current flows through the resistor also flows through the motor.