Match the column
Column-IColumn-II(i) A stationary uniformly charged dielectric ring[A] Time indepe…

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Match the column
Column-IColumn-II(i) A stationary uniformly charged dielectric ring[A] Time independent electrostatic field out of system(ii) Dielectric ringuniformly chargedrotating with angularvelocity ω.[B] Magnetic field(iii) Constant current inring i0[C] Induced electric field(iv) i = i0 cosωt[D] Magnetic moment

CGP EDU Academic Team · Accepted Answer

The correct answer is A. Step 1: We analyze each of the items in Column-I and match them to the descriptions in Column-II.(i) A stationary uniformly charged dielectric ring: This setup creates an electrostatic field that is time-independent. Thus, it corresponds to [A] Time independent electrostatic field out of system.(ii) Dielectric ring uniformly charged rotating with angular velocity ω: A rotating charged ring generates a magnetic field due to the movement of charge. Hence, it corresponds to [B] Magnetic field.(iii) Constant current in ring i0: Steady current in a circuit generates a magnetic field around it, but it does not induce an electric field, making this a mismatch with [C] Induced electric field. Hence, we have no direct match but consistent with magnetic field generation.(iv) i = i0 cos(ωt): This expression describes an alternating current which indicates that there is a changing current that will create a changing magnetic field, corresponding with [D] Magnetic moment. Thus we can match:(i) - [A], (ii) - [B], (iii) - [C], (iv) - [D].Therefore, the correct answer is A.

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Column-I	Column-II
(i) A stationary uniformly charged dielectric ring	[A] Time independent electrostatic field out of system
(ii) Dielectric ring uniformly charged rotating with angular velocity ω.	[B] Magnetic field
(iii) Constant current in ring i0	[C] Induced electric field
(iv) i = i0 cosωt	[D] Magnetic moment

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