How much work is done by the force that moves the charge?

The work done by the force is 6μJ

Explanation:

Suppose, A 30 nC charge is moved from a point where V₁ = 130 V to a point where V₂ = -70 V.

We need to calculate the work done by the force

Using formula of work done

Where, q = charge

=potential difference

Put the value into the formula

Hence, The work done by the force is 6μJ.

no. dot product   =0 when vecs at right angles