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Moving Charges and Magnetism question

2011 · Q93
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Moving Charges and Magnetism question

2011 · Q93

NEETPhysicsMoving Charges and MagnetismMCQ+4 / −1
A square loop, carrying a teady current III, is placed in a horizontal plane near a long straight conductor carrying a steady current III1 at a distance d from the conductor as shown in figure. The loop will experience
AIPMT 2011 Mains Physics - Moving Charges and Magnetism Question 53 English
  1. A
    a net attractive force towards the conductor
  2. B
    a net repulsive force away from the conductor
  3. C
    a net torque acting upward perpendicular to the horizontal plane
  4. D
    a net torque acting downward normal to horizontal plane
View written solutionFree

Correct answer: A

AIPMT 2011 Mains Physics - Moving Charges and Magnetism Question 53 English Explanation

F1>F2{F_1} \gt {F_2}F1​>F2​ as F∝1dF \propto {1 \over d}F∝d1​, and F3{F_3}F3​ and F4{F_4}F4​ are equal and opposite. Hence, the net attraction force will be towards the conductor.

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