1. What is Electric Potential?

Electric potential (V) is the amount of electric potential energy (W) per unit charge (q) at a point in an electric field. It's measured in volts (V), where 1 V = 1 J/C.

2. How Does the Calculator Work?

The calculator uses the electric potential formula:

Where:

• \( V \) — Electric potential (volts, V)
• \( W \) — Work or electric potential energy (joules, J)
• \( q \) — Electric charge (coulombs, C)

Explanation: The formula shows that electric potential is the work needed to move a unit charge from a reference point to a specific point in the electric field.

3. Importance of Electric Potential Calculation

Details: Calculating electric potential is fundamental in circuit analysis, electrostatics, and understanding electrical systems. It helps determine voltage differences that drive current flow.

4. Using the Calculator

Tips: Enter work in joules (J) and charge in coulombs (C). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between electric potential and electric potential energy?
A: Electric potential energy is the total energy of a charge in a field, while electric potential is the energy per unit charge.

Q2: What are typical values for electric potential?
A: Common voltages range from millivolts (mV) in biological systems to kilovolts (kV) in power lines.

Q3: How does electric potential relate to electric field?
A: The electric field is the negative gradient of the electric potential (E = -∇V).

Q4: Can electric potential be negative?
A: Yes, electric potential can be negative if the work done is negative (work against the field).

Q5: What's the reference point for electric potential?
A: For point charges, infinity is typically the zero reference. In circuits, we often use ground as reference.