What does Rheostat controls? electron drift velocity or quantity of electrons?
We know I=nAve
n=quantity of electron
A MUST WATCH MOVIE
Made by School Students
These problems were posted by Geena. Hope that we will be able to post the answers to these questions soon; each in a separate post. By the time visitors can attempt to post their answers as comments to this post. (Only selected posts will be published) Please note that the answers are not published until the [...]
Categories: Ask Physics, charge density, Electromagnetism, Interesting Questions, potential drop, Project, time answers Tags: ammeter, AskPhysics, cell, charge density, internal resistance, Physics, physics teachers, post, potential drop, problem, proton, question, time answers, wire
“How do we know the direction of magnetic field around the current carrying conductor?” Asked Nikhil Incoming search terms:direction of magnetic field around a current carrying conductorDIRECTION OF MAGNETIC FIELD IN CURRENT CARRYING CONDUCTORmagne...
Categories: Ask Physics, Current Electricity, Electromagnetism, Magnetism, Project Tags: carrying, conductor, conductorDIRECTION, current, direction, electric current, field, fieldLink, magnet, magnetic effect, magnetic field, Physics, post, search terms
Why is the Large Hadron Collider as large as it is? I heard today that the actual accelerator portion is only 40 Meters long, the rest is (mostly) magnets that steer the particles, so why does the accelerator need to be 17 miles in circumference? Does making it larger provide any advantages? (asked Rick) Incoming search terms:cerncern [...]