Problem 78GP

Find the difference in electric potential, ΔV = VB — VA between the points A and B for the following cases: (a) The electric field does 0.052 J of work as you move a +5.7-μC charge from A to B. (b) The electric field does -0.052 J of work as you move a −5.7-μC charge from A to B. (c) You perform 0.052 J of work as you slowly move a +5.7-μC charge from A to B.

Solution 78 GP:

Step 1 of 3:-

a)

Here, we have to find the potential difference between a and B, if the electric field does 0.052 J of work as you move the charge from A to B.

We know that,

.

So, the potential difference is 9122.8 volts.

b)

Here, we have to find the potential difference between a and B, if the electric field does -0.052 J of work as you move the charge from A to B.

We know that,

.

So, the potential difference is 9122.8 volts.

c)

Here, we have to find the potential difference between a and B, if you do 0.052 J of work as you move the charge from A to B.

We know that,

.

So, the potential difference is 9122.8 volts.