- #1
vin300
- 603
- 4
Charge 1=+e
Charge 2=-e
Charge 3=+e
If chg3 moves along the positive x in a magnetic field directed in +ve y, it sees an electric field in the +ve z, then in this frame a chg 1 and 2 both in rest in the initial frame experience an electric field in the -ve z, with the positive charge accelerated in the -ve z and negative charge in the +ve z, but this is not possible because both + and - charges are at rest in the initial frame, so in chg 3's frame both must be accelerated in -ve z.
Charge 2=-e
Charge 3=+e
If chg3 moves along the positive x in a magnetic field directed in +ve y, it sees an electric field in the +ve z, then in this frame a chg 1 and 2 both in rest in the initial frame experience an electric field in the -ve z, with the positive charge accelerated in the -ve z and negative charge in the +ve z, but this is not possible because both + and - charges are at rest in the initial frame, so in chg 3's frame both must be accelerated in -ve z.