Electrical phenomena result from a fundamental property of matter - electric charge. The atoms that constitute most matter we...

Teaching Guidance 14-16

Once your students understand how circuits can be set up, it is time to introduce them to the idea of the lamp as an informal...

Teaching Guidance 14-16

You can define one coulomb as one ampere-second but that is of little value in giving students a picture of it. Talk of...

Teaching Guidance 14-16