Ans.(a) Thermal effect
Explanation:
The correct answer is Thermal effect. Electric heaters work on Joule’s Law of Heating, where electric current passing through a conductor converts electrical energy into heat.
Information Booster:
● Used in electric heaters, irons, and geysers.
● More resistance in the conductor leads to more heat production.
● Nichrome wire is commonly used in heating appliances.
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120 Mins English English100 Questions100 Marks120 Mins English English100 Questions100 Marks120 Mins EnglishWhich law explains colours of stars based on temperature?
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A point mass has a velocity v = (1.0 m/s) i + (3.0 m/s) j, at a certain instant. At the same instant, it experiences a force F = - (2.0 N) i + (4.0 N) j + (5.0 N) k. i, j and k are unit vectors along x-, y-, and z- axis, respectively. The power delivered by the force, at that instant is:
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