Question

It takes 10 J of energy to move a 2 C charge from point A to point B. What is the potential difference between points A and B?Group of answer choices20 V0.2 V5 VNone of the above

Answer 1

Take into account that potential difference is defined as the quotient between the energy requierd to move a charge a from a point A to a point B. Use the following formula:

`\Delta V=(\Delta U)/(q)`

where ΔV is the potential difference, ΔU is the energy and q is the charge.

In this case, ΔU = 10J and q = 2C. By replacing these values into the previous formula and by simplifying you obtain:

`\Delta V=(10J)/(2C)=5V`

where 1J/C = 1V (for the units of potential difference)

Hence, the potential difference is 5V