Question

1°C rise in temperature is observed in a conductor by passing a certain current. If the current is double then the rise in temperature is approximately.

Options

• 1°C

• 2°C

• 2.5°C

• 4°C

Answer 1

4°C

Explanation:

H = I² R^t and So, H `oo` i²

H = MCQ = MC × 1

H₁ = MCQ₁ = 4MC or Q₁ = 4°C