When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

1m length of constantan wire, a metre rule, a low voltage power pack, a variable resistor, a voltmeter, an ammeter, connecting leads, a switch, 2 crocodile clips, Sellotape. The temperature of the ...

Speaker one Have you ever wondered how some of our devices can charge so quickly? Understanding the characteristics of electrical components is crucial to designing devices that can charge our phones ...