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What Do You Mean by a Rheostat? - Physics

One Line Answer
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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APPEARS IN

Frank ICSE Class 10 Physics Part 2
Chapter 4 Current Electricity
Exercise 4.1 | Q 9 | Page 174
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