Alternative Homework Assignment: Electrical Safety |
Chris was ironing clothes when his roommate Mike turned on a fan in the room. Suddenly the lights went out. Realizing they had blown a fuse, they went to the basement to replace it. As the removed the burned out fuse, Chris noticed some dirt in the treads of the fuse box. Without thinking, he reached to brush it away with a finger. Chris quickly pulled his finger away as he received an extremely painful shock. In the following problem we will consider what caused the fuse to blow, how strong the shock Chris received was, and what fortunate happenstance saved his life.
Picture Courtesy of Michael Bath
These problems written and collected by K. Vick, E. Redish, and
P. Cooney. These problems may be freely used in classrooms. They may be
copied and cited in published work if the Activity-Based Physics (ABP)
Alternative Homework Assignments (AHA's) Problem site is mentioned and
the URL given.
Work supported in part by NSF grant DUE-9455561 |
To contribute problems to this site, send them to redish@quark.umd.edu
Go back to the AHA page |
Maintained by
University of Maryland PERG
Comments and questions may be directed to
E. F. Redish
Last modified June 25, 2002