1. What is the Electric Force Equation?

The electric force equation F = q × E calculates the force experienced by a charged particle in an electric field. This fundamental equation in electromagnetism describes how charged particles interact with electric fields.

2. How Does the Calculator Work?

The calculator uses the electric force equation:

Where:

• \( F \) — Electric force (Newtons)
• \( q \) — Electric charge (Coulombs)
• \( E \) — Electric field strength (Newtons per Coulomb)

Explanation: The force on a charged particle is directly proportional to both the magnitude of the charge and the strength of the electric field.

3. Importance of Electric Force Calculation

Details: Calculating electric force is essential for understanding electromagnetic phenomena, designing electrical systems, and analyzing particle behavior in electric fields.

4. Using the Calculator

Tips: Enter charge in Coulombs and electric field strength in N/C. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the direction of the electric force?
A: The force direction depends on the charge sign. Positive charges experience force in the direction of the electric field, while negative charges experience force opposite to the field direction.

Q2: How does this relate to Coulomb's Law?
A: This equation is derived from Coulomb's Law and provides the force on a charge due to an external electric field.

Q3: What are typical values for electric charge?
A: Elementary charge is 1.6 × 10⁻¹⁹ C. Macroscopic charges are typically in microcoulombs (μC) to millicoulombs (mC) range.

Q4: What are common electric field strengths?
A: Typical values range from 100 N/C (fair weather atmospheric field) to 3 × 10⁶ N/C (breakdown field strength in air).

Q5: Can this equation be used for point charges?
A: Yes, this equation applies to point charges in uniform electric fields. For non-uniform fields, integration may be required.