physical experiment of studying measuring electric current, potential, voltage in an electrical circuit. an electric circuit

voltmeter ammeter electric current circuit voltage equipment experiment conductor law physics set test template model education amplifier light science direct instrument lightbulb resistor laboratory resistance closed power practice meter experience coil wire ampere indicator measurer vector measure tool tester chronometer battery background dial energy device research joules lenz source switch physical studying measuring potential electrical consisting connected lightbulbs conductors circuit