If the electric potential at a point is increased from 5 V to 15 V, what is the change in potential energy of a charge of 3 C placed at that point?

Practice Questions

1 question

30 J
15 J
10 J
5 J

Questions & Step-by-step Solutions

1 item

Q: If the electric potential at a point is increased from 5 V to 15 V, what is the change in potential energy of a charge of 3 C placed at that point?

Solution: Change in potential energy ΔU = qΔV = 3 C × (15 V - 5 V) = 30 J.

Steps: 8

Step 1: Identify the initial electric potential, which is 5 V.
Step 2: Identify the final electric potential, which is 15 V.
Step 3: Calculate the change in electric potential (ΔV) by subtracting the initial potential from the final potential: ΔV = 15 V - 5 V.
Step 4: Calculate ΔV, which equals 10 V.
Step 5: Identify the charge (q) placed at that point, which is 3 C.
Step 6: Use the formula for change in potential energy (ΔU), which is ΔU = q × ΔV.
Step 7: Substitute the values into the formula: ΔU = 3 C × 10 V.
Step 8: Calculate the change in potential energy: ΔU = 30 J.

If the electric potential at a point is increased from 5 V to 15 V, what is the change in potential energy of a charge of 3 C placed at that point?

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Questions & Step-by-step Solutions

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