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Two metal plates (A, B) are kept horizontally with separation of \(\left(\frac{12}{\pi }\right)cm\), with plate A on the…

Q1

Two metal plates (A, B) are kept horizontally with separation of \(\left(\frac{12}{\pi }\right)cm\), with plate A on the top. An atomizer jet sprays oil (density \(1.5g/c{m}^{3}\) ) droplets of radius 1 mm horizontally. All oil droplets carry a charge 5 nC . The potentials \({V}_{A}\) and \({V}_{B}\) required on plates A and B respectively in order to ensure the droplets do not descend. The values of \({V}_{A}\) and \({V}_{B}\) are _______(Neglect the air resistance to the droplets and take \(g=10m/{s}^{2}\) )

[02 April, 2026 (Shift-2)]

a

100 V and 580 V

b

580 V and 100 V

c

60 V and 400 V

d

0 V and-200 V

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