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What Do You Mean by a Rheostat?

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Question

What do you mean by a rheostat?
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Solution

A rheostat is a device used in electric circuit to regulate current without changing the voltage source. It is also called variable resistance.
 
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Chapter 4: Electricity and Magnetism - Graded Assignment 4.1 [Page 237]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 4 Electricity and Magnetism
Graded Assignment 4.1 | Q 29. | Page 237
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