Ohm's Law Formula Calculator

Ohm's Law Formula:

\[ V = I \times R \]

V: Voltage (V)
I: Current (A)
R: Resistance (Ω)

Voltage (V):

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1. What is Ohm's Law Calculator?

Definition: This calculator computes voltage based on current and resistance using Ohm's Law.

Purpose: It helps electrical engineers, technicians, and students quickly determine voltage in electrical circuits.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V = I \times R \]

Where:

\( V \) — Voltage (Volts)
\( I \) — Current (Amperes)
\( R \) — Resistance (Ohms)

Explanation: The voltage across a conductor is directly proportional to the current flowing through it, with resistance being the constant of proportionality.

3. Importance of Ohm's Law

Details: Ohm's Law is fundamental for analyzing electrical circuits, designing electronic components, and troubleshooting electrical systems.

4. Using the Calculator

Tips: Enter the current in amperes and resistance in ohms. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Can I calculate current or resistance with this?
A: This version calculates voltage. Future versions may include options to solve for any variable in the equation.

Q2: Does this work for AC circuits?
A: The basic form works for DC circuits. For AC, you would need to consider impedance and phase angles.

Q3: What are typical resistance values?
A: Resistance varies widely - from milliohms in conductors to megaohms in insulators.

Q4: How precise should my inputs be?
A: For most applications, 2-3 decimal places are sufficient, but the calculator accepts up to 6 decimal places.

Q5: What if I get zero voltage?
A: Check your inputs - either current or resistance must be zero, which is unusual in practical circuits.