A magnetic field can be produced by
A moving charge
A changing electric field
None of these
Both of these
A moving charge and changing electric field both produces magnetic field.
The motion of a charged particle can be used to distinguish between a magnetic field and electric field in a certain region by firing the charge
If a proton is projected in a direction perpendicular to a uniform magnetic field with velocity $v$ and an electron is projected along the lines of force, what will happen to proton and electron
Electrons moving with different speeds enter a uniform magnetic field in a direction perpendicular to the field., time periods of rotation will be :
A charge $q$ moves in a region where electric field and magnetic field both exist, then force on it is
Which of the following statement is true
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