An electric oven rated at $2.2\text{kW}$ and $220\text{V}$ is operated in a domestic circuit that has a current rating of $5\text{A}$. What result is expected when the oven is switched on? Explain with necessary calculations.

Step-by-step solution

1. Identify given values: Power rating of the oven $P=2.2\text{kW}=2200\text{W}$ and supply voltage $V=220\text{V}$.
2. Use the electric power formula $P=V\times I$ to express current as $I=\frac{P}{V}$.
3. Substitute the values to calculate current: $I=\frac{2200\text{W}}{220\text{V}}=10\text{A}$.
4. Compare the calculated current ($10\text{A}$) with the circuit rating ($5\text{A}$).
5. Since the current drawn by the oven ($10\text{A}$) is greater than the safe current limit ($5\text{A}$), overloading occurs.
6. As a result, the electric fuse in the circuit will melt and break the circuit to prevent damage from overheating.

Concept tested: Electric circuit overloading and current rating

Published 24 August 2026 · How this solution was prepared and checked

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