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Two identical beeds each have a mass 'm' and charge 'q' when placed in a hemi spherical bowl of radius 'R' with frictionless and non-conducting walls, the beads move and at equilibrium they are at a separation 'R' as shown in figure. The charge on each bead is

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Asked by anshuman.anshuman090 | 07 Apr, 2019, 09:26: AM

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sin c e space b o t h e space t h e space c h a r g e s space a r e space i n space q u i l i b r i u m space t h e n space t h e space e l e c t r o s t a t i c space r e p u l s i o n space f o r c e space i s space b a l a c e d space b y space g r a v i t a t i o n space f o r c e space b e t w e e n space t h e m space w h i c h space i s space a t t r a c t i v e space i n space n a t u r e s o space F g space equals space F e fraction numerator G m cross times m over denominator R squared end fraction space equals space fraction numerator q cross times q over denominator 4 πε subscript 0 cross times straight R squared end fraction s o space f r o m space t h e space a b o v e space e q u a t i o n space v a l u e space o f space c h a r g e space q space i s q space equals space m cross times square root of 4 G πε subscript 0 end root

Answered by Ankit K | 07 Apr, 2019, 23:16: PM

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JEE main - Physics

Square of the time period of revolution of a planet is proportional to the cube of the mean distance between sun and planet. If mean distance is increased by 2% then percentage change in its time period is

Asked by coolskrish | 13 Oct, 2024, 12:50: PM

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JEE main - Physics

if the radius of the earth sinks by 1% and its density remain constant then what is the change in value of acceleration due to gravity of earth at its surface. Please solve it by using error concept, I have a little confusion in it.

Asked by srkgb8018 | 15 May, 2024, 20:12: PM

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JEE main - Physics

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Asked by anushkaracha | 14 Mar, 2024, 10:38: AM

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JEE main - Physics

Two identical metal spheres each of diameter 'd ' are kept in contact,then gravitational force is proportional to

Asked by krajasekharnaidu13 | 04 Feb, 2024, 15:37: PM

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JEE main - Physics

t

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Asked by jpmeena2222 | 31 Dec, 2023, 10:27: AM

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JEE main - Physics

Four particles of equal masses are moving round a circle of radius r due to their mutual gravitation attraction. Find the angular velocity.

Asked by aadityakumar0603 | 05 Mar, 2023, 22:17: PM

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JEE main - Physics

i just want to know why a ball falls on earth when left from a height becuse the gravitional forces of both of them is equal and opposite hence the ball must tend to be at rest in the air .I have already consulted few lecturers but their answer were complicated and tough to understand so i want to get a simpler answer so that i acn understand it in a proper way

Asked by geethamehs08 | 15 Oct, 2022, 17:54: PM

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JEE main - Physics

.

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Asked by swayamagarwal2114 | 18 Aug, 2022, 09:04: AM

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JEE main - Physics

plz solve

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Asked by swayamagarwal2114 | 21 Jul, 2022, 17:18: PM

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JEE main - Physics

Sir,The gravitational due to a uniform disc at a point in its axis is 2GMr/R²((1/r)-(1/√(r²+R²))).Andthe potential at a point in the axis is -2GM/R²(√(R²+r²)-r) where R-radius and r-distance in the axis. Also,We know that on differentiating gravitational potential we get the gravitational field at that point.But that is not the case for disc.On integrating the potential we are not getting the value of the field.Why is it so? Please help

Asked by das.atom1966 | 16 May, 2022, 17:34: PM

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