If the energy stored in a condenser is increased by 300%, its potential difference increases by?

900 %

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1600 %

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200 %

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100 %

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Solution

The correct option is D $100 %$
$E = \frac{1}{2} C V^{2}; V \propto \sqrt{E}$
$\frac{V_{2}}{V_{1}} = \sqrt{\frac{E_{2}}{E_{1}}} = \sqrt{\frac{4}{1}} = 2$
$(\frac{V_{2}}{V_{1}} - 1) 100 % = (2 - 1) 100 % = 100 %$

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If the energy stored in a condenser is increased by 300%, its potential difference increases by?

The correct option is D 100%E=12CV2 ; V∝√E V2V1=√E2E1=√41=2 (V2V1−1) 100%=(2−1)100%=100%

The correct option is D $100 %$
$E = \frac{1}{2} C V^{2}; V \propto \sqrt{E}$
$\frac{V_{2}}{V_{1}} = \sqrt{\frac{E_{2}}{E_{1}}} = \sqrt{\frac{4}{1}} = 2$
$(\frac{V_{2}}{V_{1}} - 1) 100 % = (2 - 1) 100 % = 100 %$