Question

what is Lorentz force. Also explain amphere circuital law..

Answer 1

Hey friend.

Consider a charge moving in the consideration of electric and magnetic field.
Now if it is moving in the presence of both the fields then both field will apply force on this moving charge.
The force due to electric field E will be

Fe = Eq............ 1
Force on the charge due to magnetic field B will be
Fb = q(v cross B)

Lorentz force will be sum of both of these forces and is
Given by

Fl = q(E+V cross B).
It's significance is that it helps in selecting the velocity of charge particle with which it should be projected to do a certain experiment.



Ampere circuital law States that the
Closed integral of B. dl = U * I enclosed
It's has great significance in finding the magnetic field of any wire or loop.

Hope this will help you.
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Answer 2

Lorentz force:

A charge moving in a magnetic field,in a direction other than the direction of the magnetic field, experiences a force. This force is Lorentz force.



Ampere Circuital Law:

The line integral of the magnetic field around some closed loop is equal to the times the algebraic sum of the currents which pass through the loop.


Hope it helps................