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JEE Advanced 2018 Paper 2

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Question : 15

Total: 54

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. List-I contains different relations between E and d. List-II describes different electric charge distributions, along with their locations. Match the functions in List-I with the related charge distributions in List-II.

P. E is independent of d

1. A point charge Q at the origin

2. A small dipole with point charges Q at (0,0,l) and At (0,0,−l) take 2l<<d

3. An infinite line charge coincident with the x-axis, with uniform linear charge density λ

4. Two infinite wires carrying uniform linear charge density parallel to the x- axis. The one along (y=0,z=l) has a charge density +λ and the one along (y=0,z=−l) has a charge density −λ.Take 2l<<d

5. Infinite plane charge coincident with the xy-plane with uniform surface charge density

	P	Q	R	S
A.	5	3,4	1	2
B.	5	3	1,4	2
C.	5	3	1,2	4
D.	4	2,3	1	5

A
B
C
D

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