Electromotive force (EMF) is an unfamiliar concept to most people, but it’s closely linked to the more familiar concept of voltage. Understanding the difference between the two and what EMF means gives you the tools you need solve many problems in physics and electronics, and introduces the c...
Once we know it, we can rearrange to find the other two.Examples of Working Out Watts, Amps and Volts for Appliances How to Work Out Watts Watts = Volts x Amps e.g. A 120 volt appliance takes 2 amps, what is the power?Power in watts = 120 x 2 = 240 watts...
Ambient levels of nonionizing electromagnetic fields (EMF) have risen sharply in the last five decades to become a ubiquitous, continuous, biologically active environmental pollutant, even in rural and remote areas. Many species of flora and fauna, becau
with radius r = 20 cm, in a magnetic field that increases in magnitude from Bi= 1 T to Bf= 10 T in the space of ∆t = 5 s – what is the induced EMF in this case?
We can generalize the electric potential energy of a charge by using an arbitrary charge as our measurement and then removing it later. Through this process we can ultimately find that the electric potential due to a point charge is:
How to convert kW to kVA with a formula Power:Power in physics refers to the rate at which work is done. It is a scalar quantity and not a vector meaning that it is directionless. It can be calculated by dividing the product of the force and displacement by the time....
Here is a typical description of motional EMF: "The figure below shows a conducting rod of length L being moved with a velocity v in a uniform magnetic field B: The magnetic force acting on a free electron in the rod will be directed upwards. As a result, electrons will start to ...
A commonly encountered school-level Physics practical is the determination of the internal resistance of a battery – typically an AA or D cell. Typically this is based around a simple model of such a cell as a source emf in series with a small resistor. The cell is connected to a resisti...
This is the best and easiest explanation to follow when it comes to simple motors. I sifted through so many sites and old textbooks trying to find an easy explanation. Now I can actually explain this to someone without stuttering Steven ...
How To Build A Forum In Rails 4 https://www.youtube.com/watch?v=rTP1eMfI5Bs&list=PL23ZvcdS3XPLNdRYB_QyomQsShx59tpc-&index=11&t=4s And btw, I'm getting these Links from my Facebook Posts, where I'm collecting 'sources of authority' for these 'LawDocs' which SHOW you how to...