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A semicircular wire of radius r, carryin...

A semicircular wire of radius `r`, carrying a current `I`, is placed in a magnetic field of magnitude `B`. The force acting on it

A

can never be zero

B

can have the maximum magnitude `2Bir`

C

can have the maximum magntidue `Bipir`

D

can have the maximum magnitude `Bir`

Text Solution

Verified by Experts

The correct Answer is:
B
To find the Ampere force on a conductor of any shape, replace the conductor by an imaginary straight conductor joining the two ends of the given conductor.
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