1. What is a Resistor Output Voltage Calculator?

Definition: This calculator determines the voltage drop across a resistor using Ohm's Law.

Purpose: It helps electrical engineers, technicians, and hobbyists calculate voltage drops in circuits.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{out} \) — Output voltage (volts)
• \( I \) — Current flowing through resistor (amps)
• \( R \) — Resistance value (ohms)

Explanation: The voltage across a resistor equals the current through it multiplied by its resistance.

3. Importance of Voltage Calculation

Details: Proper voltage calculation ensures correct circuit design, component selection, and troubleshooting.

4. Using the Calculator

Tips: Enter the current in amps 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 the current through a conductor is directly proportional to the voltage across it and inversely proportional to its resistance.

Q2: Can I use this for AC circuits?
A: This calculator is for DC circuits. For AC, you need to consider impedance and phase angles.

Q3: What if my resistor is in series/parallel?
A: First calculate the equivalent resistance for the network, then use that value in the calculator.

Q4: How accurate is this calculation?
A: It's theoretically perfect for ideal resistors. Real-world factors like temperature may cause slight variations.

Q5: What units should I use?
A: Use amps for current, ohms for resistance, and the result will be in volts.