The positive terminal of the voltmeter is connected closest to the positive terminal of the battery. You can investigate voltage across cells and lamps in a series and parallel circuit by ...

The voltmeter is connected in parallel with the component. The supply voltage is shared between components in a series circuit, so the sum of the voltages across all of the components in a series ...

The device works using a very low-impedance resonant circuit and a very high-impedance voltmeter. It measures the ratio of the voltage across the known circuit and the unknown circuit. This ...