# Ohms Law Formula

 By Dave Rongey Summary: Ohms Law Formula and how it is used for determining electrical loads as it pertains to Watts, Volts and Amps. Ohms Law is very helpful to help us understand sizing electrical circuits for the home electrical system.

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The Ohm's Law Calculations for Electrical

Using the Ohm's Law is a way to determine information needed to understand how to design electrical circuits.

This formula works with three main variables and depending on what is known can produce a missing factor which is needed to determine the circuit size.

The Ohm's Law is also used when designing appliances and building electrical equipment and devices.

 Example: A Microwave Oven circuit Circuit Planning: Device ________________ Volts _________________ Amps ________________ Quantity ______________ Circuit Size Amps ______ Wire Size ____________ See the Wire Size Chart Ohms Law Formula to Convert Watts: (calculating watts to amps) Watts / Volts x Quantity = *Total Amps. * Note: This does not include Power Factor or Voltage Drop (wire distance). Knowing the specified circuit size as amps will not require the Ohms Law Calculation.

## Electrical Calculations and Formulas

### Converting Watts to Kilowatt/hours

Question:
Can you tell me how to convert watts to kilowatt/hours?

Kilowatts represents 1000 watts, so 6000 watts is the same as 6 kw.

Based on this, if 6000 watts of power were consumed for one hour then that would be 6000 watts per hour.

A watt hour meter measures how many watts of power are consumed per hour. Electrical utility bills often include the peak demand period, which is the highest amount of electricity that is consumed in one hour. If this high demand of electricity is during the peak demand period of the day then this may have an effect on the electrical utility bill causing it to be more expensive. If a high amount of electricity is consumed during non-peak demand periods during the day then the electrical billing may not be as costly.

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## The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

## The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
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## Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
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The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.

### More about Ohms law formula

Electrical Circuit for a Microwave
How to Wire a Microwave Oven Circuit: Microwave Cords and Plugs, The Problem with Shared Electrical Circuits

Long Distance Electrical Wiring
How to Install and Connect Long Distance Electrical Wiring: Ohms Law and Voltage Drop Calculations, Increased Wire Sizes and Connections to Electrical Devices, Sizing the Circuit Breaker.

Figuring Volts Watts and Electrical Amperage
How to Calculate Electrical Loads and Circuits using Ohms Law: The Most Common Electrical Calculation using Ohms Law

Wiring Methods for Adding Kitchen Circuits
How should I wire kitchen electric circuits? How to Install Electrical Circuits in a Kitchen for Dish Washer and Garbage Disposal Outlet, Microwave Oven and more.

How To Get Power for a Microwave Circuit
How to Install an Electrical Circuit for a Microwave Oven: Dedicated Circuit for a Microwave Oven, Example of a Microwave Oven Circuit.

Wire Size for a Home Electrical Service Panel
How to Size Wire for an Electrical Service Panel: What kind of wires do I need to get power to my home?

Understanding the Capacity of Electric Generators
How to Calculate Generator Load Capacity: Basic Electrical Calculation for Watts, Ohms Law Formulas, I have a 3000 watt generator that I want to use to power a motor.

What is the formula for the computations of main wire?
The electrical loads have much to do with the design of the main wire and main switch.....

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