A thin spherical oil drop carrying a net charge q is balanced in still air with a vertical uniform electric field of81x10° Vm-. When the field is switched off the drop is observed to fall with terminal velocity7strengthDEARCER ENDEAVOUR2×10-3 ms*. Given, g = 9.8 ms viscosity =of the airand the density ofoil=900 kgm3, the magnitude of q is(a) 1.6×10-1ºC(b) 3.2x10-19C(c) 4.8x10-19C(d) 8.0x10-1C

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a thin spherical oil drop carrying a net charge q is bålanced in still air with a vertical uniform electric field of trength 81 x10 Vm¬'. When the field is switched off the drop is observed to fall with terminal velocity ust viscosityof the ain EAOb and the density ofoil=900 kg n°, the magnitude of q is a) 1.6×10-1ºC (b) 3.2x10-19C (c) 4.8×10-1ºC (d) 8.0×10-1ºC

a thin spherical oil drop carrying a net charge q is bålanced in still air with a vertical uniform electric field of trength 81 x10 Vm¬'. When the field is switched off the drop is observed to fall with terminal velocity ust viscosityof the ain EAOb and the density ofoil=900 kg n°, the magnitude of q is a) 1.6×10-1ºC (b) 3.2x10-19C (c) 4.8×10-1ºC (d) 8.0×10-1ºC

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter6: Gauss's Law

Section: Chapter Questions

Problem 69P: The surface charge density on a long straight metallic pipe is . What is the electric field outside...

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