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The rate of heat developed in a resistor...

The rate of heat developed in a resistor R connected to a supply of potential V is H . What will be the rate of heat developed if the potential difference is `V//3` and the resistance doubled ?

Text Solution

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In the first case ,
`H'prop(V^(2))/(R)" or ,"H=k(V^(2))/(R)` [ where k = constant ]
In the second case ,
`H'prop((V)/(3))^(2)/(2R)=(1)/(8)=k(V^(2))/(R)=(1)/(8)H`
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