Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
holtadit:
I have a poor understanding of Lenz's law as its not in my textbook and probably not part of my syllabus. But I still want to understand it.
In the attached picture, would the induced e.m.f. flow in direction shown by the RED arrow if the magnet were pushed in the direction shown?
If the magnet were pulled out of the coil would the induced e.m.f. flow in the direction shown by the PINK arrow ?
ALSO in which direction does the pointer kick towards in each case and why ?
holtadit:
PLEASE SEE THE ABOVE QUESTION
ONe more too: if a fuse is rated at 5A does that mean it will blow when the current is AT 5 A or when it EXCEEDS 5A ???
astarmathsandphysics:
When it exceeds. It also has to exceed 5A for a short time so the fuse will melt
holtadit:
--- Quote from: Ari Ben Canaan on April 03, 2010, 07:40:49 am ---I have a poor understanding of Lenz's law as its not in my textbook and probably not part of my syllabus. But I still want to understand it.
In the attached picture, would the induced e.m.f. flow in direction shown by the RED arrow if the magnet were pushed in the direction shown?
If the magnet were pulled out of the coil would the induced e.m.f. flow in the direction shown by the PINK arrow ?
ALSO in which direction does the pointer kick towards in each case and why ?
--- End quote ---
Please this question too astar.
The Golden Girl =D:
no in the pink arrow's direction
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