write a notes on rehostat one sentence 11class physics
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♤ What is a rheostat?
Rheostats are two-terminal devices, with one lead connected to the wiper and the other lead connected to one end of the resistance track. The rheostat is a type of variable resistor, whose resistance can be changed so as to change the amount of current flowing through a circuit.
This device was named “Rheostat” using two Greek words “rheos” and “status” (meaning a current controlling device), by an English Scientist Sir Charles.
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