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Indian Navy AA (Artificer Apprentice) Electricity — practice questions

Explore 1 free Electricity questions in Indian Navy AA (Artificer Apprentice) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Electricity questions and exercises with answers

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If the current through a resistor is doubled, the heat produced in the same time becomes:Read the answer and worked solution →

Worked practice questions

If the current through a resistor is doubled, the heat produced in the same time becomes:

  1. unchanged
  2. four times
  3. halved
  4. doubled
Show answer and solution

Correct answer: B. four times

H = I²·R·t. Doubling I makes I² four times, so heat is four times the original.

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