Time varying magnetic filed is present in a circular region of radius R. Match the proper entries from column-2 to column-1 using the codes given below the columns,
`{:("Column I",,"Column II"),("(P) An unsteady magnetic field",,"(1) Electric field is perpendicular to the length of rod "),((Q) "Induced electric field at a point within magnetic field (r gtR)",,(2) r/2 (dB)/(dt)),("(R)Induced electric field at a point out side the magnetic field (r lt R)",,(3)(R^(2))/(2r)(dB)/(dt)),((S)"If a rod is placed along the diameter of the magnetic field",,"(4) induced electric field"):}`

Answer

A, B, C, D