A) 3F
B) -3F
C) F
D) -F
Correct Answer: D
Solution :
A circular coil \[PQRSP\] is placed in a uniform magnetic field. When a current flows through the coil, the force on segment \[PQ\] is \[\mathbf{F}\] then the force on the remaining segment \[QRSP\] is\[-\mathbf{F}\]. Aliter \[\because \] \[{{F}_{\operatorname{close}\,\,loop}}=0\] \[{{\mathbf{F}}_{PQ}}+{{\mathbf{F}}_{QRSP}}=0\] \[{{\mathbf{F}}_{QRSP}}=-\mathbf{F}\]
You need to login to perform this action.
You will be redirected in
3 sec
