ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Electric circuit. Capacitor (blue, lower centre) connected to an alternating current (AC) power supply (orange, left). This type of supply operates with the electrical current flowing back and forth at a certain frequency. In the UK, the current alternates 50 times per second. An ammeter (centre) is measuring the flow of the electric current around the circuit in amperes, while a voltmeter (right) is measuring the voltage (volts), or potential difference, in the circuit. The voltmeter is showing a negative reading due to the reverse flow of the current.
Model release not required. Property release not required.