The electric field $E$ is measured at a point $P(0,0,d)$ generated due to various charge distributions and the dependence of $E$ on $d$ is found to be different for different charge distributions.

Column-II describes different electric charge distributions, along with their locations. Match the functions in column-I with the related charge distributions in column-II.

column -I	column-II
(A) $E$ is independent of $d$	(P) A point charge $Q$ at the origin
(B) $E\propto \frac{1}{d}$	(Q) A small dipole with point charges $Q$ at $(0,0,l)$ and $-Q$ at $(0,0,-l)$. Take $2l<<<d$.
(C) $E\propto \frac{1}{d^2}$	(R) An infinite line charge coincident with the x- axis, with uniform linear charge density $\lambda$
(D) $E\propto \frac{1}{d^3}$	(S) Two infinite wire carrying uniform linear charge density parallel to the x-axis. The one along $(y=0,z=l)$ has a charge density $\lambda$ and the another along $(y=0,z=-l)$ has a charge density $-\lambda$. Take $2l<<d$.
	(T) Infinite plane charge coincident with the xy-plane with uniform surface charge density.

Which of the following option has the correct combiantion considering coulumn-I and column-II.

Standard XII Physics 1 year ago

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+10 pts