1. What is Current Calculation by Ohm's Law?

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

Purpose: It helps electricians, engineers, and students analyze and design electrical circuits.

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 resistance to calculate the current flowing through the circuit.

3. Importance of Current Calculation

Details: Proper current calculation ensures safe circuit design, 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 > 0.

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 are used?
A: Volts (V) for voltage, ohms (Ω) for resistance, and amperes (A) for current.

Q3: Does this work for AC and DC circuits?
A: This basic form applies to DC circuits. For AC, impedance (Z) replaces resistance (R).

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

Q5: How accurate is this calculation?
A: It's mathematically precise for ideal conditions, but real-world factors like temperature may affect actual current.