1. What is a Power Voltage Current Calculator?

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

Purpose: It helps electricians, engineers, and DIY enthusiasts determine the power consumption or generation in electrical circuits.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Power (watts)
• \( V \) — Voltage (volts)
• \( I \) — Current (amps)

Explanation: The voltage is multiplied by the current to calculate the power in watts.

3. Importance of Power Calculation

Details: Accurate power calculation ensures proper circuit design, component selection, and electrical safety.

4. Using the Calculator

Tips: Enter the voltage in volts and current in amps. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What units does this calculator use?
A: The calculator uses volts for voltage, amps for current, and outputs power in watts.

Q2: Can I use this for AC circuits?
A: This calculates real power for DC circuits. For AC, you'd need to consider power factor.

Q3: What's a typical household voltage?
A: In North America, 120V is standard, while many other countries use 230V.

Q4: How do I measure current safely?
A: Always use a properly rated multimeter or clamp meter for current measurements.

Q5: What if I know power and want to find current?
A: Rearrange the formula: \( I = \frac{P}{V} \)