Which describes the magnetic field due to the displacement current in a capacitor?

a It is zero as the capacitor is being charged and then is nonzero after the charging is complete.

b It exists as the capacitor is being charged and then is zero after the charging is complete.

c It exists as the capacitor is being charged and then has the same value after the charging is complete.

Question

Physics

Pamela Casey

11 November, 10:54

Which describes the magnetic field due to the displacement current in a capacitor?

a It is zero as the capacitor is being charged and then is nonzero after the charging is complete.

b It exists as the capacitor is being charged and then is zero after the charging is complete.

c It exists as the capacitor is being charged and then has the same value after the charging is complete.

+2

Answers (1)

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Danny Yoder · Answer 1

b It exists as the capacitor is being charged and then is zero after the charging is complete.

Explanation:

The magnetic field due to displacement current is proportional to the displacement current. The magnitude of displacement current is equal to charging current of a capacitor. In the beginning, charging current is maximum but as capacitor is charged gradually, charging current decreases. Ultimately, it becomes zero.

Hence the magnetic field will also become zero in the end.