An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain.
ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
Solution:
The current drawn by the electric oven can be calculated using the formula
P = V × I
I = P/V
Substituting the values, we get
I = 2000 W/220 V = 9.09 A
The current drawn by the electric oven is 9.09 A which exceeds the safe limit of the circuit. This causes the fuse to melt and break the circuit.
Suggested Q&A
Science · Class 10- ScienceClass 101. Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it. Describe some salient features of magnetic lines of field concept.
- ScienceClass 101. What is the role of fuse, used in series with any electrical appliance? Why should a fuse with defined rating not be replaced by one with a larger rating?
- ScienceClass 10The device used for producing electric current is called a 1. generator 2. galvanometer 3. ammeter 4. motor
- ScienceClass 10The phenomenon of electromagnetic induction is 1. the process of charging a body. 2. the process of generating a magnetic field due to a current passing through a coil. 3. producing induced current in a coil due to relative motion between a magnet and the coil. 4. the process of rotating a coil of an electric motor.
- ScienceClass 10Which of the following correctly describes the magnetic field near a long straight wire? 1. The field consists of straight lines perpendicular to the wire. 2. The field consists of straight lines parallel to the wire. 3. The field consists of radial lines originating from the wire. 4. The field consists of concentric circles centered on the wire.
- ScienceClass 10What precaution should be taken to avoid the overloading of domestic electric circuits?
- ScienceClass 10Name two safety measures commonly used in electric circuits and appliances.
- ScienceClass 10Choose the correct option. A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each 1. two revolutions 2. one revolution 3. half revolution 4. one-fourth revolution
- ScienceClass 10Which sources produce alternating current?
- ScienceClass 10Name some sources of direct current.