so does this mean that if a a body moves thru a uniform magnetic field, there would be no change of flux through it?...if there is no change of flux, then where does that instantaneous emf come from which i explained in my first post?
Whats the Concept behind "change of electric/magnetic flux"?
What i mean to say is that, i understand the concept of "change of distance", "change of time" and other changes and other time rates....
but the "time rate of change of electric flux" really confuses me. Does change of flux mean...
ohhhhh...thanks, i understand..but now there is one other problem.
An electron is left in a positive electric field. Does it go Up the potential gradient? or down the potential gradient?..
thnx in advance...
(PS. this is a question, which i read in some book today)
i think that, for W=-q (delta V)
holds for, charge moved from higher potential to lower, or from lower to higher, CONSIDERING THAT THE FIELD IS DOING THE WORK.
If the Field does work in moving the charge away. (to a lower potential) then its clear that the work is positive , since the...
What i mean to say is, for example we have two plates, one positive the other negative...
By convention the positive is said to be at a higher potential than the negative one..
But what if i put an electron between these two plates. The electron would obviously go towards the positive...
Consider an positive electric field and a positive charge, q inside this field. Suppose the FIELD does work on this charge and takes it from point A to B. Now i am trying to figure out what sign i have to put with this work..
which equation should i use here?
W= - (delta V) x (q)...