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JEE Advanced 2021 Full Test 5 Paper 1

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PART – I

Physics

SECTION – A (One Options Correct Type)
This section contains 06 multiple choice questions. Each question has four choices (A), (B), (C) and (D), out of which ONLY ONE option is correct.

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Question : 3

Total: 54

Two parallel disks each having radius R are separated by a distance l. The surface charge densities are σ and −σ. The electric field at point P, a large distance r along the axis of the disks is:

σR2l
ε0r3
2σR2l
ε0r3
σR2l
4ε0r3
σR2l
2ε0r3

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