COMEDK · Physics · 19. Current Electricity
Which of the following is a correct statement?
- A Heat produced in a conductor varies directly as the current flowing.
- B Heat produced in a conductor varies inversely as the current flowing.
- C Heat produced in a conductor varies directly as the square of the current flowing.
- D Heat produced in a conductor varies inversely as the square of the current flowing.
Answer & Solution
Correct Answer
(C) Heat produced in a conductor varies directly as the square of the current flowing.
Step-by-step Solution
Detailed explanation
Heat produced in a conductor is given as \[ \begin{array}{ll} & H=i^{2} R t \\ \Rightarrow & H \propto i^{2} \end{array} \] where, \(i=\) current, \(R=\) resistance and \(t=\) time.
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