1.

Surface churgc densitieson the spheres of radius r_(1) and r_(2) are same, then ratio of their electric potential will be ...... .

Answer»

`(r_(1)^(2))/(r_(2)^(2))`
`(r_(2)^(2))/(r_(1)^(2))`
`(r_(1))/(r_(2))`
`(r_(2))/(r_(1))`

SOLUTION :In `V=(1)/(4pi in_(0))xx(Q)/(r) q = 4pi r^(2)sigma`
`:. In V = (4pir^(2)sigma)/(4pi in_(0)r)=(sigmar)/(in_(0)), (sigma)/(in_(0))` is same
`:. V PROP r `
`:. (V_(1))/(V_(2))=(r_(1))/(r_(2))`


Discussion

No Comment Found

Related InterviewSolutions