MHT CET202415 May 2024Evening ShiftPhysicsElectrostaticsActual

Charges of 2 C and -3 C are placed at two points A and B separated by 1 m . The distance of the point from A , where net potential is zero, is

Options

A0.7 m
B0.5 m
C0.4 m
D0.6 m

Correct answer

C. 0.4 m

Step-by-step solution

V= K q r Let r₁ and r₂ be the distances from points A and B respectively where the potential is zero. array ll & K (2 10⁻⁶ ) r ₁ = K (3 10⁻⁶ ) r ₂ & r ₂ r ₁ = 3 2 & r ₂+ r ₁ r ₁ = 2+3 2 & 1 r₁ = 5 2 ( given, r₁+r₂=1 ~m ) & r₁=0.4 ~m array

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