Question:

A wire carrying current I, bent as shown in the figure, is placed in a uniform magnetic field B that emerges normally out from the plane of the figure. The force on this wire is ______
Wire
Fill in the blank with the correct answer from the options given below.

Updated On: Apr 15, 2025
  • 4BIR, directed vertically downward
  • 3BIR, directed vertically upward
  • BI(2R + πR), vertically downward
  • 2πBIR, from P to Q
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The Correct Option is A

Solution and Explanation

Force will depends on the displacement of end points i. e L = 4R

⇒F=4IRB,Downward

The correct answer is Option (1) → 4 BIR, directed vertically downward

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