1. What is a Voltage to Amperage Calculator?

Definition: This calculator determines the electric current (amperage) flowing through a circuit based on voltage and resistance using Ohm's Law.

Purpose: It helps electricians, engineers, and electronics enthusiasts calculate current for circuit design and troubleshooting.

2. How Does the Calculator Work?

The calculator uses Ohm's Law formula:

Where:

• \( I \) — Current (amperes)
• \( V \) — Voltage (volts)
• \( R \) — Resistance (ohms)

Explanation: The voltage is divided by the resistance to calculate the current flowing through the circuit.

3. Importance of Current Calculation

Details: Proper current calculation ensures safe circuit operation, proper component selection, and prevents electrical hazards.

4. Using the Calculator

Tips: Enter the voltage in volts and resistance in ohms. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is Ohm's Law?
A: Ohm's Law states that current through a conductor is directly proportional to voltage and inversely proportional to resistance.

Q2: What units should I use?
A: Use volts for voltage, ohms for resistance, and the result will be in amperes (amps).

Q3: Can I use this for AC circuits?
A: This calculator is for DC circuits. For AC, you need to consider impedance (Z) instead of just resistance.

Q4: What if I get zero resistance?
A: Zero resistance would theoretically cause infinite current (short circuit), which is dangerous and unrealistic.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise, but real-world factors like temperature and material properties may affect actual current.