Some background on the basic principles of gauge operation: Variable resistance ... to the temperature gauge. An ammeter shows the rate of charge, while a voltmeter registers how much voltage ...

We can then take our first voltmeter and ammeter readings, which we will add to our table of results. Speaker two We’ll then alter our variable resistor setting four more times, which will give ...

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 ...