1. What is the Electric Force Equation?

The electric force equation (F = qE) calculates the force experienced by a charged particle in an electric field. Unlike the magnetic force (F = qvBsinθ), the electric force doesn't depend on the particle's velocity.

2. How Does the Calculator Work?

The calculator uses the electric force equation:

Where:

• \( q \) — Charge (Coulombs)
• \( E \) — Electric field strength (N/C)
• \( F \) — Resulting force (Newtons)

Explanation: The force is directly proportional to both the charge and the electric field strength. Positive charges experience force in the direction of the field, negative charges opposite to the field.

3. Importance of Electric Force Calculation

Details: Calculating electric force is fundamental in understanding particle motion in electric fields, designing electronic components, and analyzing electromagnetic systems.

4. Using the Calculator

Tips: Enter charge in Coulombs and electric field strength in N/C. Both values must be non-zero for valid results.

5. Frequently Asked Questions (FAQ)

Q1: How does this differ from magnetic force?
A: Electric force acts on any charge (moving or stationary), while magnetic force only acts on moving charges and depends on velocity.

Q2: What's the direction of the force?
A: For positive charges, same direction as E-field; for negative charges, opposite direction.

Q3: What are typical charge values?
A: Electron charge is ~1.6×10⁻¹⁹ C. Macroscopic objects may have microcoulombs (µC) to millicoulombs (mC).

Q4: What are typical electric field strengths?
A: Atmospheric E-field ~100 N/C downward, inside atoms ~10¹¹ N/C, in capacitors ~10⁶ N/C.

Q5: Does velocity affect electric force?
A: No, unlike magnetic force, electric force is independent of velocity.