Electro-magnetic pulser efficiency

  • Thread starter e2m2a
  • Start date
  • #1
291
6
Suppose there is an object with a permanent magnet attached to it that can slide on a linear track. The object is initially at rest and the permanent magnet alligns with the axis of an electro-magnet. If the electro-magnet is pulsed on momentarily with a current so that the object acquires a kinetic energy equal to 1 joule, typically how much electrical energy would be needed for the object to acquire this kinetic energy? I assume it would take more that 1 joule of electrical energy to impart 1 joule of kinetic energy to the object. But how much? What would be the theoritical maximum efficieny of the electro-magnetic pulser?
 

Answers and Replies

  • #2
anorlunda
Staff Emeritus
Insights Author
9,573
6,653
Energy will be conserved. So where else would the energy go? Into resistance heating is the primary answer. So your question can't be answered without knowing the resistances.

In other words, your question has nothing to do with magnetics, but rather with circuit implementation.
 

Related Threads on Electro-magnetic pulser efficiency

  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
4
Views
6K
Replies
6
Views
2K
Replies
5
Views
1K
Replies
4
Views
9K
Replies
1
Views
879
Replies
1
Views
4K
  • Last Post
Replies
1
Views
8K
  • Last Post
Replies
7
Views
464
Top