Question

The magnitude of net magnetic force on wire frame as shown below is ( the frame is kept in a perpendicular magnetic field $\overline{B}$)

• A. $B{I}_{0}L$
• B. $\frac{B{I}_{0}L}{2}$
• C. $\frac{3}{2}B{I}_{0}L$
• D. $2B{I}_{0}L$

Answer 1

The correct option is A $B{I}_{0}L$

Given:

The wire system with there length

Solution:

The force on the longer sides will cancel out each other and the force on the smaller side will be =BI$\circ$L

So,correct opt: A