A problem from my book-12!

Two protons are travelling with same non -relativistic speed in gravity free space in different directions as shown in figure with their velocities vector making same angle with horizontal and are symmetric about their perpendicular bisector. If we measure the force on each of them due to other's magnetic field we can see that magnitude of force acting on both of them is same but they don't make action reaction pairs. This is not is accordance with newtons third law of mechanics. how is it possible?

F12 means force on 1 due to 2nd's magnetic field

*The electric field in options refer to columbic force between them and magnetic force refers to F12 and F21 *

The electric field is not mentioned, which is the cause of this ambiguity Such a situation is hypothetical Another force other than magnetic and electric is acting on them that balances the forces Magnetic force is frame dependent force, in different frames different forces act on system when charges are moving columbic force doesn,t act on line joing centre Newtons third law needs correction in case of moving charges. This question is still a mystery. Magnetic force is not a real force

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Puneet Mangla
Jul 6, 2016

Since the magnetic and electric field produced by each proton is time dependent then the time dependent eletric field will produce its induced magnetic field and time dependent magnetic field will produce its own induced electric field. these two induced field act on them in such a way that it will balance the forces and newtons law will hold. so ans is. another force other that columbic force and magnetic force act on them i.e induced force.

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...