1. What is Current?

Current is the rate of flow of electric charge. It is measured in amperes (A), where 1 ampere equals 1 coulomb of charge passing a point in 1 second.

2. How Does the Calculator Work?

The calculator uses the fundamental current equation:

Where:

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

Explanation: This equation shows that current is directly proportional to charge and inversely proportional to time.

3. Importance of Current Calculation

Details: Calculating current is fundamental in electrical engineering and physics, used in circuit design, power systems, and electronic devices.

4. Using the Calculator

Tips: Enter charge in coulombs and time in seconds. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between current and charge?
A: Charge is the quantity of electricity (measured in coulombs), while current is the rate of flow of that charge (measured in amperes).

Q2: What is a typical current for household appliances?
A: Household appliances typically range from 0.5A (small electronics) to 15A (large appliances).

Q3: How is current measured experimentally?
A: Current can be measured with an ammeter connected in series in a circuit.

Q4: What is direct current vs alternating current?
A: DC flows in one direction constantly, while AC periodically reverses direction.

Q5: What is the relationship between current, voltage and resistance?
A: Ohm's Law states that current equals voltage divided by resistance (I = V/R).