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  • In the circuit shown, the resistance r is a variable resistance.  If for <img alt="r=fR" src="https:

In the circuit shown, the resistance r is a variable resistance.  If for r=fR, the heat generation in r is maximum then the value of f is :

Option: 1

\frac{1}{4}


Option: 2

\frac{1}{2}


Option: 3

\frac{3}{4}


Option: 4

1


Answers (1)

Heat and power developed

H=i^2Rt

 

 Heat energy will be maximum when resistance will be minimum 

Posted by

Sumit Saini

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