JEE Mains 05-Sep-2020 Shift 2 Solved Paper

Section: Physics

Question : 3 of 75

Marks: +1, -0

Ten charges are placed on the circumference of a circle of radius R with constant angular separation between successive charges. Alternate charges 1,3,5,7,9 have charge (+q) each, while 2,4,6,8,10 have charge (−q) each. The potential V and the electric field E at the centre of the circle are respectively:
(Take V=0 at infinity)

[5 Sep 2020 Shift 2]

V=
10q
4π∈0R
;E=
10q
4π∈0R2
V=0;E=
10q
4π∈0R2
V=0;E=0
V=
10q
4π∈0R
;E=0

Validate

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