⋅x ‌‌ If ‌v0=1.5KL‌ then for ‌x=L ‌v=‌
3
2
KL−KL=‌
1
2
KL So, the loop will have some velocity and it will not stop. If the loop completely gets inside then further no current flows and no force acts. If v0=‌
KL
10
then for v=0 ‌
dv
dt
=−‌
B2L2
mR
v ∫v0v‌
dv
v
=
t−K
∫
0
⋅dt‌‌⇒‌‌ln‌
v
v0
=−Kt ‌
v
v0
=e−Kt it will never stop If v0=3KL then v at x=L is v=3KL−KL=2KL ⇒‌