Ans: In this problem we have

Power of the oven (P) = 2 kW = 2000 W

Potential Difference (V) = 220 V

We have P = VI

⇒I=P/V

    = 2000/220

    = 9.09A


Here the current drawn by the electric oven is 9.09 A, which exceeds the safe limit of the circuit that is 5A. Therefore electric fuse will melt and break the circuit.

Calculating the current drawn by the electric oven:

To calculate the current drawn by the electric oven, we can use the formula:

I = P / V

Where:
- I is the current (in amperes)
- P is the power rating of the oven (in watts)
- V is the voltage of the circuit (in volts)

Given that the power rating of the oven is 2 kW (or 2000 watts) and the voltage of the circuit is 220 volts, we can substitute these values into the formula:

I = 2000 / 220
I ≈ 9.09 A

Therefore, we can expect the electric oven to draw a current of approximately 9.09 amperes.

Comparing the expected current with the current rating of the circuit:

The current rating of the domestic electric circuit is given as 5 A. This means that the circuit is designed to safely carry a maximum current of 5 amperes.

Since the expected current drawn by the electric oven is approximately 9.09 amperes, it exceeds the current rating of the circuit.

When the current drawn by a device exceeds the current rating of the circuit, it can lead to several issues, including:

1. Circuit overload: The excess current may overload the circuit, causing the circuit breaker to trip or the fuse to blow. This is a safety mechanism designed to protect the circuit from damage and prevent electrical hazards.

2. Overheating: The increased current can cause the wiring and other components in the circuit to overheat. This can lead to insulation damage, melting of wires, and even fire hazards.

3. Voltage drop: When the circuit is overloaded, the voltage supplied to the electric oven may drop below the rated voltage. This can affect the performance of the oven and result in inefficient operation.

Recommendations:
To avoid these issues, it is important to ensure that the current drawn by the electric oven does not exceed the current rating of the circuit. Here are a few recommendations:

1. Upgrade the circuit: If you plan to regularly use the electric oven, you may consider upgrading the domestic electric circuit to a higher current rating. This will ensure that the circuit can safely handle the current drawn by the oven without overloading.

2. Limit other electrical loads: If upgrading the circuit is not feasible, you can try to limit the use of other electrical appliances while the oven is in operation. This will reduce the overall load on the circuit and minimize the risk of overloading.

3. Use lower power settings: Some electric ovens have adjustable power settings. By using a lower power setting, you can reduce the current drawn by the oven and stay within the current rating of the circuit.

4. Consult a professional: If you are unsure about the electrical capacity of your circuit or need assistance with upgrading or modifying your electrical system, it is advisable to consult a qualified electrician. They can assess your specific needs and provide appropriate guidance.

By following these recommendations, you can ensure safe and efficient operation of your electric oven within the limits of your domestic electric circuit.