The physics of moving a small charge through a potential difference.

How much work is needed to move a -8.0 ìC charge from ground to a point whose potential is +75 V?

2 answers

Work required = q * (change in V)
where q is the charge.

In this case the work is negative. The negative charge will be attracted to the positive potential point
How much does work is required to move a -500 micro coulomb charge across a potential difference of 300V