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Standard XII

Physics

Dependence of Resistance on Temperature

An external r...

Question

An external resistance R is connected to a battery of e.m.f. V and internal resistance r. The joule heat produced in resistor R is maximum when R is equal to

r

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\frac{r}{2}

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2 r

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Infinitely large

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Solution

The correct option is D $r$
For maximum joule heat produced in resistor external resistance = Internal resistance.

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An external resistance R is connected to a battery of e.m.f. V and internal resistance r. The joule heat produced in resistor R is maximum when R is equal to

The correct option is D rFor maximum joule heat produced in resistor external resistance = Internal resistance.

The correct option is D $r$
For maximum joule heat produced in resistor external resistance = Internal resistance.