Please explain! A charged particle moving at a constant speed is entering a regi
ID: 1391674 • Letter: P
Question
Please explain!
A charged particle moving at a constant speed is entering a region in which there is a uniform magnetic field. The particle follows the curved path shown. A number of changes to this initial situation are described in 1-6 below. Select from choices a-e how each change will affect the magnetic force on the particle shortly after it enters the magnetic field. This change will (a) alter only the direction of the force on the particle. (b) only increase the magnitude of the magnetic force on the particle (c) only decrease the magnitude of the magnetic force on the particle (d) alter both the magnitude and direction of the magnetic force on the particle (e) not affect the magnetic force on the particle. cause the magnetic force on the particle to be zero Each change below refers to the initial situation described above: 1) The +q particle is replaced by a +2q particle. 2) The +q particle is replaced by a q particle. 3) The +q particle is replaced by a neutral particle 4) The particle enters the region moving a slower initial velocity. a 5) The magnetic field is one-third its original strength. 6) The direction of the magnetic field is parallel to the initial velocity particle'sExplanation / Answer
magnetic force.
Fb= qvxB
The magnitude of the electric charge is constant.
The speed is constant.
The magnetic field is constant and perpedicular to the speed of electric charge.
The magnetic force changes direction only when the electric charge changes direction.
Option a
Part two.
1) the magnetic force depends on the electric charge, if the electric charge is doubled, the magnetic force on the charge will too.
2) The magnetic force cambiadira steering and movement and consequently also the electric load. but it is of equal magnitude for a positive electric charge.
3)If the charge is neutral, ie zero, the magntud of the magnetic force will be too. The particle thus describe a uniform rectilinear motion.
4)the magnetic force also depends on the speed of the particle, the lower the speed, the lower the magnitude of the magnetic force of the electric charge.
5)magnetic forces a trio of the original force is reduced,
6)When the direction of the magnetic field is parallel to the velocity, the vector product between the magnetic field and the velocity is zero, therefore the magnetic force on the particle is zero.