Question

the charge q is projected into a uniform electric field e, work done when it moves a distance y is​

Answer 1

Thus the value of work done is W = qEY

Explanation:

The word done is the product between force and displacement.

• W = Force x Displacement
• Electric field = E
• Charge = q
• Distance = Y

Solution:

work done is given by:

W = q(ΔV) = q∫vector E vector.dl = q∫E dl cosθ

here θ = 0  

Hence

W=qE∫dl = qEy

Thus the value of work done is W = qEY