Question

an electron passes through a region of space in which magnetic field B at over the same region if the field is audited as shown below then​

Answer 1

Given:

The magnetic field= B

An electron= e

To find:

The deflection of electron moving along the magnetic field

Solution:

As we know the lorentz formula

F= q(v×B)

In simplified form

F=qvBsinФ

As according to the diagram the electron moving in the same direction as where the magnetic field is

Therefore Ф=0°

sin0=0

Put in above equation

we get F=0

As the force is equal to zero which means there is no deflection

So there will be no deflection on electron.

Answer 2

There is no magnetic field in the given region.

Explanation:

• Electric field is the force experience at one point due to a charge. Magnetic field is force experienced by the motion of the electric charge.
• The magnetic field experienced is called as Lorentz force.
• The Lorentz force is given by the formula:

F = qvB sin θ

Where,

θ = Angle between magnetic and electric field

• From the given diagram, the charge and magnetic field are in the same direction.
• Thus, θ is zero in this case which means the magnetic field cancels electric field and vice-versa.
• Thus, there is no magnetic field and electric field in the given region.