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A charged particle having a positive cha...

A charged particle having a positive charge q approaches a grounded metallic spheres of raidus R with a constant small speed v as shown in figure. In this situation

A

as the charge draws nearer to the surface of the sphere , a current flows into the ground.

B

as the charge draws nearer to the surface of the sphere, a current flows out of the ground into the sphere.

C

as the charged particle draws nearer, the magnitude of the current flowing in the connector joining the shell to the ground increases

D

as the charged particle draws nearer, the magnitude of the current flowing in the connector joining the sphere to the ground decreases.

Text Solution

Verified by Experts

The correct Answer is:
A, C
a.,c.
`(1)/(4piepsilon_(0))(Q)/(R)+(1)/(4piepsilon_(0))(q)/((R_(0)-vt))=0`
where `R_(0)` is the initial distance of the charged particle.
`Q=(Rq)/(R_(0)-vt)` or `(dQ)/(dt)=i=(Rqv)/((R_(0)-vt)^(2))`
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