(A) State two applications of Joule's heating in domestic electric circuit.
OR
(B) (a) Establish the relationship between the commercial unit of electric energy and the SI unit of electric energy.
(b) Determine the total resistance of the parallel combination of three resistances of , and .
(A) State two applications of Joule's heating in domestic electric circuit.
OR
(B) (a) Establish the relationship between the commercial unit of electric energy and the SI unit of electric energy.
(b) Determine the total resistance of the parallel combination of three resistances of , and .
Two applications of Joule's heating in domestic electric circuit are:
(a) Electric bulb: The filament of an electric bulb is made of tungsten. When electric current flows through it, the filament gets heated up and produces light.
(b) Electric heater: Electric heaters like electric iron, electric toaster, etc. work on the principle of Joule's heating.
Analysis & Explanation
Joule's heating is the process by which an electric current produces heat in a conductor. This principle is used in various domestic electric circuits, such as electric bulbs and electric heaters.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2025?
This question carries 2 marks in the CBSE Class 10 Science 2025 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Electricity" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Electricity" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2025 paper?
This is a Very Short Answer question from Section B in the CBSE Class 10 Science 2025 paper.