A large negative charge −Q is located in the vicinity of points A and B. Suppose a positive charge +q is moved

A large negative charge −Q is located in the vicinity of points A and B. Suppose a positive charge +q is moved at constant speed from A to B by an external agent. Along which of the paths shown in the figure will the work done by the field be the greatest?

(a) Path 1
(b) Path 2
(c) Path 3
(d) Path 4
(e) Work is the same along all four paths.

Solutions

Expert Solution

Word done is defined as multiplying the force by amount of moment of an object.

The work done by the electric field is,

W = qΔV

Here, q is the charge and ΔV is the potential difference.

A large negative charge ‘-Q’ is located in the vicinity of points ‘A’ and ‘B’, suppose a positive charge ‘+q’ is moved a constant speed from ‘A’ to ‘B’ by an external point.

There are four paths shown in the given picture

But the work done by the field be the same along four paths, since work done by the field is independent of the path followed by the charge.

Hence, the correct option is (e).

Junaid answered 1 year ago

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