Q: A charge q is projected into a uniform electric field E, find the work done when it suffers a displacement Y along the field direction.
Answer qEY
Detail solution
As we know that force F on charge q by the field E is given by
F= qE
So work done W for displacement Y along the direction of force will be
W =FYcosθ
=FYcos0
=FY
⇒W=qEY
Physics Teacher :Ranadip Saha
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