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Questions  

A triangular loop in the form of an equilateral triangle is carrying a current of 2A.The loop is placed in a uniform magnetic field of induction 1.5 T, with its plane perpendicular to the magnetic field as shown in figure. Then net force experienced by the loop is 

a
16  N
b
43  N
c
83  N
d
Zero

detailed solution

Correct option is D

F→=ile→×B→.For any closed current carrying loop, le= 0.∴ F = 0 .

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Two infinitely current carrying insulated wires AB and CD are carrying same current  I. The wires cross each other at right angles as shown in figure. Three identical conductors P1Q1 , P2Q2 and P3Q3, carrying same current are placed a shown in figure and the forces acting on them are F1 , F2 and F3 respectively. Then select the correct option.


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