Correct Answer - (i) `2*84xx10^(-5)` टेसला ,(ii) `1*42xx10^(-5)` टेसला
`2l0*1mrArrl=0*05m`
`m=10 "Am",r=0*2m`
(i) अक्षीय स्थिति में, `B_(a)=(mu_(0))/(4pi)*(mu_(0))/(4pi)*(2Mr)/((r^(2)-l^(2))^(2))`
`=(10^(-7)xx2xx0*1xx10xx0*2)/([(0*0)^(2)-(0*05)^(2)]^(2)) " " [M=2l.m]`
`=(0*4xx10^(-7))/((0*0375)^(2))=284*4xx10^(-7)`
`=2*84xx10^(-5)T`
(ii) निरक्षीय स्थिति में,
`B_(e)=(2*84xx10^(-5))/(2)=1*42xx10^(-5)T`