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COMEDK2014PhysicsCurrent Electricity

Which of the following is a correct statement?

Options

  1. AHeat produced in a conductor varies directly as the current flowing.
  2. BHeat produced in a conductor varies inversely as the current flowing.
  3. CHeat produced in a conductor varies directly as the square of the current flowing.
  4. DHeat produced in a conductor varies inversely as the square of the current flowing.

Correct answer

C. Heat produced in a conductor varies directly as the square of the current flowing.

Step-by-step solution

Heat produced in a conductor is given as array ll & H=i² R t & H i² array where, i= current, R= resistance and t= time.

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