Question
Physics Question on electrostatic potential and capacitance
A test charge is moved from lower potential point to a higher potential point. The potential energy of test charge will
remain the same
increase
decrease
become zero
increase
Solution
A test charge is moved from a lower potential point to a higher potential point. The potential energy of the test charge will increase. Because U=QV ∵Q=+1,U=V At high potential will high energy and at low potential will have low energy.
When a test charge is moved from a lower potential point to a higher potential point, its potential energy will increase.
The potential energy of a test charge in an electric field is given by the equation:
PE = qV
where PE is the potential energy, q is the charge of the test charge, and V is the potential difference.
In this case, as the test charge is moved from a lower potential point to a higher potential point, the potential difference (V) increases. Since the charge (q) remains the same, the potential energy (PE) will also increase.
Therefore, the potential energy of the test charge will increase when it is moved from a lower potential point to a higher potential point.