An electric current ' 
' enters and leaves a uniform circular wire of radius 
through dfiametrically opposite points. A particle carrying a charge 
moves along the axis of the circular wire with speed 
. What is the magnetic force experienced by the particle when it passes through the center of the circle?
A
B
C
D
Zero
Text Solution
Verified by ExpertsThe correct answer is:
D
Net magnetic field at center 
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