1. What is Electrical Charge?

Electrical charge (Q) is a fundamental property of matter that causes it to experience a force when placed in an electromagnetic field. It is measured in coulombs (C) and calculated using the formula Q = I × t, where I is current in amperes and t is time in seconds.

2. How Does the Calculator Work?

The calculator uses the electrical charge formula:

Where:

• \( Q \) — Electrical charge (coulombs)
• \( I \) — Current (amperes)
• \( t \) — Time (seconds)

Explanation: The formula calculates the total electrical charge transferred when a constant current flows for a specific time period.

3. Importance of Electrical Charge Calculation

Details: Calculating electrical charge is essential in circuit design, battery capacity estimation, electrochemistry, and understanding electrical phenomena in various applications from electronics to power systems.

4. Using the Calculator

Tips: Enter current in amperes and time in seconds. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the unit of electrical charge?
A: The SI unit of electrical charge is the coulomb (C).

Q2: How is this formula related to battery capacity?
A: Battery capacity is often measured in ampere-hours (Ah), which is directly related to the total charge the battery can deliver.

Q3: Can this formula be used for alternating current?
A: For AC circuits, the calculation is more complex as it requires integration of the current over time, considering the changing direction of current flow.

Q4: What is the relationship between charge and electrons?
A: One coulomb equals approximately 6.242 × 10¹⁸ elementary charges (electrons or protons).

Q5: Are there limitations to this formula?
A: This formula assumes constant current. For varying current, integration is required to calculate total charge.