Question

Write the condition under which an electron will move undeflected in the presence of crossed electric and magnetic field

Answer 1

Explanation:

The electron will move undeflected in the presence of crossed electric and magnetic field if the electric force on the electron is balanced by the magnetic force acting on the electron ,

Mathematically q E = q V B

Where q - charge

E - electric field

B - magnetic field

V - velocity of the electron

In the given problem q = v (charge on electron )

e E = eVB

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Answer 2

Explanation:

The electron will move undeflected in the presence of crossed electric and magnetic field if the electric force on the electron is balanced by the magnetic force acting on the electron , Mathematically q E = q V B Where q - charge E - electric field B - magnetic field V - velocity of the electron In the given problem q = v (charge on electron ) e E = eVB Read more on Sarthaks.com - https://www.sarthaks.com/144735/condition-under-which-electron-undeflected-presence-crossed-electric-magnetic-fields