Chapter 35, Problem 1A

Are all the electrons flowing in a circuit provided by the battery?

To determine

Whether all the electrons flowing in a circuit provided by the battery.

Explanation of Solution

Introduction:

The flow of electron occurs due to the potential difference of the battery in the circuit. In a circuit, the current flows due to the movement of the electrons through the wire.

In a circuit, the wire has already some mobile conduction electrons. When a circuit is connected to a battery, the electrons from the negative terminal start flowing due to conduction between the mobile electrons and electrons from the battery.

Conclusion:

Both battery and circuit itself provides electrons.