Question

how does resistance very in rheostate​

Answer 1

$\huge{\underline{\underline{\huge{\bold{AnsweR \: :-}}}}}$

• When we use a rheostat in a circuit, what we are basically doing is changing the resistance of the circuit, to change the current. As the current and resistance are inversely proportional, if a decrease in current is required, we will increase the resistance of the rheostat.