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ICSE Class 10 Physics Question 6 of 25

Solved 2025 Question Paper ICSE Class 10 Physics — Question 21

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Question

Question 3(iii)

(a) Which of the two, alternating current or direct current, produces a varying magnetic field when it flows through a conductor?

(b) State the frequency of the alternating current supply in India

Answer

(a) Alternating current produces a varying magnetic field when it flows through a conductor because alternating current changes its magnitude as well as direction periodically and thus, it provides a varying current and hence varying magnetic field as magnetic field is directly proportional to the applied current.

(b) 50 Hz.