1/R_tot=1/R_1+1/R_2

A joulemeter will be useful when discussing energy and power in electric circuits. It is worth practising with it before using...

Teaching Guidance 16-19

Adding resistors in series increases the effective resistance Adding resistors in parallel decreases the effective resistance

Lesson 16-19

We all use electrical devices in our lives, but many misconceptions exist about how these circuits actually work. In these...

CPD 11-14 14-16 16-19