If an electron has an initial velocity in a direction perpendicular to the electric field, the path of the electron isa)a straight lineb)a circlec)an ellipsed)a parabolaCorrect answer is option 'D'. Can you explain this answer?

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If an electron has an initial velocity in a direction perpendicular to the electric field, the path of the electron is

a)
a straight line
b)
a circle
c)
an ellipse
d)
a parabola

Correct answer is option 'D'. Can you explain this answer?

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Verified Answer

If an electron has an initial velocity in a direction perpendicular t...

The path is a parabola, because initial velocity can be resolved into two rectangular components, one along

and other ⊥

. The former decreases at a constant rate and latter is unaffected. The resultant path is therefore a parabola.

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If an electron has an initial velocity in a direction perpendicular to the electric field, the path of the electron isa)a straight lineb)a circlec)an ellipsed)a parabolaCorrect answer is option 'D'. Can you explain this answer?

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