Questions
An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying same current ‘I’ along the same direction as shown in figure. Magnitude of force per unit length on the middle wire ‘B’ is given by
detailed solution
Correct option is C
Force between wires A and B = force between wires B and C ∴FBC=FAB=μoI2l2πd As F→AB⊥F→BC, net force on wire B, Fnet =2FBC=2μoI2l2πdFnet =μoI2l2πd or Fnet l=μoI22πdTalk to our academic expert!
Similar Questions
Two thin long parallel wires separated by a distance b carrying a current i ampere each. The magnitude of the force per unit length exerted by one wire on the other is
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