Consider a long thin conducting wire carrying a uniform current I. A particle having mass " 
" and charge " 
" is released at a distance " 
" from the wire with a speed 
along the direction of current in the wire. The particle gets attracted to the wire due to magnetic force. The particle turns round when it is at distance 
from the wire. The value of 
is [ 
is vacuum permeability]
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Let, 
then integral becomes
.
For B 
C
…..
From equation 1 and 2
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