What does a rheostat control?
What does Rheostat controls? electron drift velocity or quantity of electrons? 
We know I=nAve
I=current
n=quantity of electron
A=conductor area
e=electron charge
v=drift velocity
(Asked Partha)
Categories: alternating currents, Current Electricity, electrical appliances, Electromagnetism Tags: Barack Obama, Business, Dave Bidini, Georg Ohm, Ohm's law, Physics, Potentiometer, United States
Where is electricity stored after it is generated but before it is supplied?
This question was posted by Chithraja. This is a common doubt arising naturally in the minds of children as well as adults who think. But they never ask, or if they ask the questions remain unanswered. I will explain the question itself first. When we switch on a bulb we get the energy. But what happens to the electricity [...]
Categories: adults, Ask Physics, Chithraja, electrical appliances, Project, several times Tags: Auto, BULB, class, doubt, Draft, electrical appliances, electricity, genaratedreview, Physics, question, search terms, several times, storedWhere, use
