Could you help me to solve the following problem? Thank you very much in advance. Two charges, q1 = 2 μC and q2 = - 2μC are at a distance of 10 cm. Calculate: a) How much is the potential at point A and at point B? b) What is the potential difference between points A and B? c) What is the value of the work to be done by the Electric Field to move a charge of - 3 μC from point A to point B? The diagram of the problem is as follows:

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