If the current flowing through a conductor for a fixed time t is doubled, then…
2024
If the current flowing through a conductor for a fixed time t is doubled, then the heat produced in the same interval of time t becomes ______ of its previous value.
Answer: C. four times — Heat produced H = I²Rt. If current doubles (2I), heat becomes (2I)²Rt = 4I²Rt, which is four times the original value.
- A.
three times
- B.
half
- C.
four times
- D.
double
- E.
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Correct answer: C
Heat produced H = I²Rt. If current doubles (2I), heat becomes (2I)²Rt = 4I²Rt, which is four times the original value.
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