How to Use a Voltmeter

It is useful to be able to measure the gain and loss of potential difference (volts) through out a circuit.

1-Connect it parallel to the part of the circuit across which the voltage is changing

2-the plugs with red plastic covers should be placed in the positive terminals (+) and those with black plastic covers in the negative terminal (-)

3-Positive terminals of the voltmeter should be closest to the positive terminal of the power supply.

4-Use the positive terminal with the highest value first .

5-There are 2 sets of numbers on the scale – read the set that matches the positive terminal you are using .