The magnetic potential at a point at a distance r from its centre along its axis is V.The magnetic potential at a point at the distance 2 r will be
The magnetic potential at a point at a distance r from its centre along its axis is V.The magnetic potential at a point at the distance 2 r will be
A. V
B. 2V
C. V/2
D. V/4
5 views
1 Answers
Correct Answer - D
`V_(1)=V,r_(1)=r, r^(2)=2r, V_(2)=?`
`V oo (1)/(r^(2))`
`(V_(2))/(V_(1))=((r)/(2r))^(2)V_(1)=(V)/(4)`
5 views
Answered