Final answer:
The work done in moving a charge of 5 coulombs from a point at 210 volts to another point at 240 volts is calculated using the formula W = qV, resulting in 150 Joules.
Step-by-step explanation:
To calculate the work done in moving a charge from one point at a certain potential to another point at a different potential, we can use the formula W = qV, where W is the work, q is the charge, and V is the potential difference between the two points. For a charge of 5 coulombs moving from a point at 210 volts to another at 240 volts, the potential difference is V = 240 volts - 210 volts = 30 volts.
Substituting the known values into the equation, we get:
W = qV = (5 C)(30 V) = 150 Joules.
The work done is therefore 150 Joules.