Use these resistors for experiments where you need a known resistance, such as Kirchoff's law of current distribution, or in bridge and potential divider circuits. Each resistor is enclosed in a plastic case with the circuit symbol and resistance value printed on the top. Their 4mm sockets let you make your connections. Our 1 ohm to 1K ohm measuring resistors are all 4W/2% quality wire resistors, and the 10M ohm is an artificially aged layered 4W/500V/1% resistor.