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Electricity — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceElectricity1 Mark
MCQ
The heat produced by passing an electric current through a fixed resistor is proportional to the square of:
  • A
    Magnitude of resistance of the resistor.
  • B
    Temperature of the resistor.
  • C
    Magnitude of current.
  • D
    Time for which current is passed.
✓

Answer

  1. Magnitude of current.

Explanation:

We know that:

H = I2Rt

It shows that the heat produced is proportional to the square of the current.

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