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ohm

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Ohm


SI unit of electrical resistance (the property of a conductor that restricts the flow of electrons through it).

It was originally defined with reference to the resistance of a column of mercury, but is now taken as the resistance between two points when a potential difference of one volt between them produces a current of one ampere.

© Research Machines plc 2008. All rights reserved. Helicon Publishing is a division of Research Machines plc.


 
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alternating current
ammeter
amp
ampere
amplifier
battery
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cell, electrical
circuit (physics)
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conductor (chemistry)
conventional current
coulomb
diode
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electric bell
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electromotive force
electron flow
electronics
energy transfer
farad
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insulator
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lamp, electric
LCD
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light-dependent resistor
light-emitting diode
liquid-crystal display
logic gate
ohm
Ohm's law
operational amplifier
parallel circuit
potential difference
printed circuit board
rectifier
relay
resistance
resistor
semiconductor
series circuit
static electricity
switch
thermistor
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volt
voltage
voltmeter
watt

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