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A resistor is a two-terminal electronic component that produces a voltage across its terminals that is proportional to the electric current through it in accordance with Ohm's law: V = IR. Resistors are elements of electrical networks and electronic circuits and are ubiquitous in most electronic equipment.

Scroll down to related links and look at "6 different resistors - Wikipedia".

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It looks like a small cylinder with a wire coming out each end and 4 colour bands around it.

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10y ago
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Q: What is a resistor and what does it look like?
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