Which of the following statements is true regarding uniform circular motion? MCQ with Answer and Explanation
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Question #1
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The heating effect of electric current is utilised in
Correct Answer: Option A
Explanation:
Fuse uses heating effect (Joule heating I²R). When current exceeds limit, fuse wire melts due to heat, breaking circuit. Motor uses magnetic effect, generator uses electromagnetic induction, galvanometer detects current. Iron box, heater also use heating effect.
Fuse uses heating effect (Joule heating I²R). When current exceeds limit, fuse wire melts due to heat, breaking circuit. Motor uses magnetic effect, generator uses electromagnetic induction, galvanometer detects current. Iron box, heater also use heating effect.
Question #2
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The least count of a standard vernier calliper is generally
Question #3
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A soap bubble appears coloured due to
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