Problem P. 4019. (November 2007)
P. 4019. A parallel plate condenser of charge Q consists of two vertical square-shaped plates of sides a, which are at a distance of d. Between the plates, parallel to them, there is another square-shaped metal plate which has the same size as the plates of the condenser and its width is d/3. Find the work done while this plate of density is pulled out of the plates.
Deadline expired on 11 December 2007.
|73 students sent a solution.|
|5 points:||53 students.|
|4 points:||8 students.|
|3 points:||3 students.|
|2 points:||4 students.|
|1 point:||4 students.|
|Unfair, not evaluated:||1 solution.|