Magnetic Effects Of Current Question 224
Question: There long straight wires A, B and C are carrying current as shown figure. Then the resultant force on B is directed ….. [KCET 2004]
Options:
A) Towards A
B) Towards C
C) Perpendicular to the plane of paper and outward
D) Perpendicular to the plane of paper and inward
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Answer:
Correct Answer: B
Solution:
$ F\propto i_{1}i_{2} $ , so force on B due to C will be greater than that due A. Hence net force on B acts towards C.