Q. 17

Three identical bar magnets are riveted together at center in the same plane as shown in Fig. 5.1. This system is placed at rest in a slowly varying magnetic field. It is found that the system of magnets does not show any motion. The north-south poles of one magnet is shown in the Fig. 5.1. Determine the poles of the remaining two.

Answer :

For the system to be in equilibrium the net magnetic moment must be zero at the center.

As one of the magnetic moment points in +ve y-axis therefore the other should point at an angle of from it.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Interactive Quiz on Magnetic field due to straight wire & circular loopFREE Class
Magnetic field due to current carrying straight wireFREE Class
Magnetic field due to current carrying circular loopFREE Class
Magnetic force on moving charge particle in magnetic field44 mins
Know about Internal Resistance & EMF42 mins
Questions based on Kirchoff's Law for Voltage67 mins
10 Good Problems on Current Electricity41 mins
Quick Revision of Current Electricity68 mins
Quiz | Wheatstone BridgeFREE Class
Kirchoff's current & Voltage lawFREE Class
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses