rheostat

Definitions

Construction

• An electric resistor, so constructed that its resistance may be varied without opening the circuit in which it is installed. Used to control the flow of electric current as in a light dimmer.

Electronics

• A resistor whose resistance may be varied by a mechanical device such as a sliding contact. Also known as adjustable resistor (1), or variable resistor (1).

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Contexts for “rheostat”

2 definitions in context
• Construction
• Electronics