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An electron enters a region where magnetic field (B) and electric field (E) are mutually perpendicular, then (a)it will always move in the direction of B (b)it will always move in the direction of E (c)it always possesses circular motion (d) it can go undeflected also.



An electron enters a region where magnetic field (B) and electric field (E) are mutually perpendicular, then


(a)it will always move in the direction of B


(b)it will always move in the direction of E


(c)it always possesses circular motion


(d) it can go undeflected also.


Grade:upto college level

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
7 years ago

(d)

When the deflection produced by electric field is equal to the deflection produced by magnetic field, then the electron can go undeflected.

 so it is independent of thickness.

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