A `5^(@)C` rise in the temperature is observed in a conductor by passing some current. When the current is doubled, then rise in temperature will be equal toA. `15^(@)C`B. `20^(@)C`C. `25^(@)C`D. `30^(@)C`

A `5^(@)C` rise in the temperature is observed in a conductor by passi

1.	A `5^(@)C` rise in the temperature is observed in a conductor by passing some current. When the current is doubled, then rise in temperature will be equal toA. `15^(@)C`B. `20^(@)C`C. `25^(@)C`D. `30^(@)C`
Answer» Correct Answer - B `I^(2)RT =msDeltatheta` `implies" "I^(2) prop Deltatheta` `(Deltatheta_(2))/(Deltatheta_(1))=I_(2)^(2)/I_(1)^(2)` `implies" "(Deltatheta_(2))/5=(2)^(2)" "implies Deltatheta_(2)=20^(@)C`

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A `5^(@)C` rise in the temperature is observed in a conductor by passing some current. When the current is doubled, then rise in temperature will be equal toA. `15^(@)C`B. `20^(@)C`C. `25^(@)C`D. `30^(@)C`

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