physics test

Question 1

what is a “potential difference”?

Answer 1

A “potential difference” is when one end of the cell becomes positive and the other becomes negative

Question 2

What is Current?

Answer 2

The amount of charge that is passing through a point in the circuit per second

Question 3

When a circuit connects the two ends of the cell, a current of electrons flows through the wire. Why?

Answer 3

This is because electrons are repelled by the negative end of the cell, and are attracted by the positive end