Home DIY
Orbi home mesh wifi system: Pros, cons and tips
Home If you are planning to move to a large house or apartment for the first time, you will
Menu
Power, voltage and current
- Last Updated: February 24, 2023
What are Power, voltage and current
Power (P) measures the rate at which energy is delivered or used by our household appliances. Power is equal to the voltage multiplied by the current.
P = V x I
Voltage (V) is the difference in electric potential between two points. Without going into technicalities, for some countries, household appliances and devices use 220 Vdc while others use 110 Vdc. Voltage is equal to power divided by current.
V = P / I
Current (I) measures the flow of electric charge through a material. Again, trying to keep it simple, the amount of current drawn is one of the two factors determining the energy/power used by a household appliance or device. Current is equal to power divided by voltage.
I = P / V
Voltage and current will let us determine the Power in Watts or Kilowatts. That knowledge already allows us to progress further with figuring out household appliances and devices’ electricity usage.
The following video explains what a Watt (W), Kilowatt (kW), and Kilowatt hour (kWh) are and how this knowledge can help us to find out our household appliances and devices’ electricity usage and electricity cost.
Do not forget to enable the video captions, as the video caption contains the concepts and explanations.
Power, voltage and current calculators
This calculator can be used to:
– Calculate Power (P) from Voltage (V) and Current (I).
– Calculate Wattage
-Calculate Watts
P = V x I
This calculator can be used to:
– Calculate Voltage (V) from Power (P) and Current (I).
V = P/ I
This calculator can be used to:
– Calculate Current (I) from Power (P) and Voltage (V).
-Calculate Amps
-Calculate Amperes
I = P / V
Here are a few other examples from our ‘Electricity usage and electricity cost calculators‘ page that may be of your interest:
Plug in power meter
If you want to know an appliance or device’s exact power or electricity usage, using a plug-in power meter is best.
The image below will redirect you to the Amazon page, where you can look at the specifications of the power meter we use for our measurements.
Our house appliances and devices like the washing machine, the dishwasher, the TV, or the printer are plugged into a wall socket.
So, with a power consumption meter, we can determine how much electricity our appliances or devices are using, and, more importantly, we can measure the electricity usage over time.
If you want to learn how to use a plug-in power meter to measure your electricity usage and cost, watch this YouTube video.
Energy conservation
Energy conservation can be defined as the decision and the act of using less energy.
Energy conservation both benefit you and the environment
The act of saving and conserving electricity does benefit you because you will be paying less for your energy bills.
And it also benefits the environment because conserving electricity prevents unnecessary waste of natural resources.
At the individual level, it may not look worth trying to save a few watts here or there.
Still, every little one counts, and if hundreds or thousands of us save a little every time, it will make an important contribution towards conserving our natural resources.
For example, if 9000 households save as little as 10 Watts per day (0,01 kWh), that would add to 32850 Kilowatt hours (kWh) saved annually.
9000 households x 0,01 kWh per day x 365 days per year
=
32,850 kWh saved per year
That is a considerable amount of electricity, but let’s add additional perspectives for clarity:
> Assuming an average cost of 0,18 euros (or dollars, pounds, or any other currency) per kWh, we would collectively save nearly 6000 euros annually.
> To produce 32,850 kWh of electricity, it is necessary to use around 17 metric tons of coal or 56 barrels of residual fuel oil.
Look at this page for more information about the resources needed to produce electricity.
In any case, small energy savings do count when looking into the bigger picture.
Proven ways to save electricity at home
Suppose you are looking for ideas to save electricity at home; look at this YouTube video. We show some useful tips for reducing electricity usage at home and decreasing the electricity bill.
Effiworkx blog
Read More »
How to earn Crypto
How to earn crypto with PRESEARCH in 2022
Home Presearch is an open, censorship-resistant, and decentralized search engine powered by Blockchain technology. While some of the most
How to earn Crypto
How to earn crypto with COINBASE in 2022
Home Coinbase is the platform that most beginners choose to start trading cryptocurrencies. This is because Coinbase is one
How to earn Crypto
How to earn crypto with NEXO in 2022
Home Nexo users can earn crypto and passive income with daily compounding interest on cryptocurrency, stablecoins, and fiat. Depending
How to earn Crypto
How to earn crypto by reading and writing in 2022
Home There are a few platforms where it is possible to earn some cryptocurrencies by reading or writing articles:
How to save electricity
Energy efficient appliances: Are they worth the money?
Buying an energy effcient appliance or device is going to save electricity, water and decrease your energy and water bills, but at what prize?
Find out if you have paid a reasonable prize for that efficient device or appliance.
How to save electricity
What does save more electricity, water, time and effort, washing the dishes by hand or using a dishwasher?
There is no need to guess… let us show you what are our results and conclusions.
How to save electricity
Do rechargeable batteries save money?
Home Rechargeable batteries Vs disposable batteries: Is it really worth the trouble of buying a battery charger and charging our
How to recycle and save
Home After watching a few videos on the internet about how to build a simple DC electric motor, I
How to save electricity
Home An appliance that uses less power is going to consume less electricity, there is nothing to argue here…
5/5
This site contains affiliate links and we will earn an affiliate commission for any purchase you make, without any cost to you.
All content found on this website is intended for informational and educational purposes only.
For more information, read the ‘terms of use‘ and ‘disclaimer‘.
The content is not intended to be a substitute for professional advice or consultation.
© 2022 Effiworkx. All rights reserved