1. What is the Charge Equation?

The fundamental charge equation in physics relates electric charge to current and time. It states that the total charge transferred is equal to the current multiplied by the time for which it flows.

2. How Does the Calculator Work?

The calculator uses the charge equation:

Where:

• \( Q \) — Electric charge in coulombs (C)
• \( I \) — Current in amperes (A)
• \( T \) — Time in seconds (s)

Explanation: One coulomb is the quantity of charge transferred by a steady current of one ampere in one second.

3. Importance of Charge Calculation

Details: Calculating charge is fundamental in circuit analysis, electrochemistry, and understanding electrical phenomena. It's essential for designing electrical systems and analyzing battery capacities.

4. Using the Calculator

Tips: Enter current in amperes and time in seconds. Both values must be positive numbers. The result will be in coulombs.

5. Frequently Asked Questions (FAQ)

Q1: What is the elementary charge?
A: The elementary charge (e) is approximately 1.602 × 10⁻¹⁹ C, the smallest unit of electric charge that is possible in ordinary matter.

Q2: How is this related to electron flow?
A: One ampere represents about 6.242 × 10¹⁸ electrons flowing past a point per second.

Q3: Can this be used for alternating current?
A: For AC, this gives the average charge transfer if you use RMS current values over a complete number of cycles.

Q4: What are practical applications?
A: Used in battery capacity calculations (ampere-hours), capacitor charging, and determining charge in electrolysis.

Q5: How does this relate to power?
A: Power (P) is energy per unit time, while charge (Q) is current over time. They're related through voltage: P = V × I and Q = I × t.