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Results tagged with electromagnetism
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user 89991
The classical theory of electric and magnetic fields, both in the static and dynamic case. It also covers general questions about magnets, electric attraction/repulsion, etc. Distinct from electrical-engineering.
3
votes
3
answers
104
views
Radiation due to current
Generally we equate change in potential energy to change in kinetic energy but in case of a charged particle like electron this is inconsistent. Consider a case: An electron(of charge e)from rest is a …
- 522
0
votes
2
answers
704
views
How paper strips get electrified?
Why paper strips get electrified when we iron them? I have learned that when two insulators are rubbed then they gets electrified but in case of ironing a paper the iron is a conductor. Will rubbing a …
- 522
0
votes
1
answer
1k
views
Which procedure is correct? [closed]
A problem is given in my textbook pg.no-191 as
Example 5.10 A solenoid has a core of a material with relative permeability $\mu_r=400$. The windings of the solenoid are insulated from the core and …
- 522
0
votes
1
answer
130
views
Amplitude of voltage from centre tap rectifier?
Should be the amplitude of voltage obtained from a centre tap transformer be about half if not rectified? Because in centre tap the potential difference for each half cycle is taken a cross only half …
- 522