Solution:

Given:
- Power rating of the electric oven = 2 kW
- Voltage of the domestic electric circuit = 220 V
- Current rating of the domestic electric circuit = 5 A

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

I = P / V

Where,
I = Current (in amperes)
P = Power (in watts)
V = Voltage (in volts)

Substituting the given values, we get:

I = 2000 W / 220 V

I ≈ 9.09 A

Comparison with the current rating:
The calculated current, 9.09 A, is greater than the current rating of the domestic electric circuit, which is 5 A. This means that the electric oven will draw more current than the circuit can handle.

Explanation:
- The power rating of the electric oven, 2 kW, indicates the amount of electrical energy it consumes in one second. In other words, it tells us how fast the oven can convert electrical energy into heat energy.
- The voltage of the domestic electric circuit, 220 V, represents the potential difference or the amount of electrical pressure available in the circuit.
- The current rating of the domestic electric circuit, 5 A, indicates the maximum amount of current that the circuit can handle without causing damage or overheating.
- When the electric oven is operated in this circuit, it tries to draw a current of 9.09 A, which is greater than the circuit's current rating. This will lead to an overload on the circuit and may cause it to trip or shut down to prevent any damage or hazards.
- To safely operate the electric oven in this circuit, either the current rating of the circuit needs to be increased or a separate circuit with a higher current rating should be used.

Conclusion:
Operating an electric oven with a power rating of 2 kW in a domestic electric circuit with a current rating of 5 A is not recommended as it exceeds the circuit's current handling capacity. It is important to ensure that the electrical appliances used in a circuit are compatible with its current rating to avoid overloading and potential hazards.