1. What is Parallel Potential?

The electric potential due to a point charge at a certain distance is given by the parallel potential equation. It represents the work needed to move a unit positive charge from infinity to that point in the electric field.

2. How Does the Calculator Work?

The calculator uses the parallel potential equation:

Where:

• \( V \) — Electric potential (V)
• \( k \) — Coulomb's constant (8.9875517873682 × 10⁹ N·m²/C²)
• \( Q \) — Charge (C)
• \( d \) — Distance from charge (m)

Explanation: The equation calculates the electric potential at a distance d from a point charge Q in a vacuum.

3. Importance of Electric Potential Calculation

Details: Electric potential is fundamental in understanding electric fields, capacitor design, and many applications in electronics and electrical engineering.

4. Using the Calculator

Tips: Enter Coulomb's constant (default is provided), charge in Coulombs, and distance in meters. All values must be positive.

5. Frequently Asked Questions (FAQ)

Q1: What is the default value of Coulomb's constant?
A: The default is 8.9875517873682 × 10⁹ N·m²/C², which is the value in a vacuum.

Q2: What are typical units for electric potential?
A: The SI unit is volts (V), equivalent to joules per coulomb (J/C).

Q3: Does this work for multiple charges?
A: For multiple charges, you would calculate the potential from each charge and sum them algebraically.

Q4: How does medium affect the calculation?
A: In different media, k would be replaced by 1/(4πε) where ε is the permittivity of the medium.

Q5: What's the difference between potential and potential energy?
A: Potential is potential energy per unit charge, while potential energy depends on the specific charge placed in the field.