Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

emf and batteries

Clement's comment on students'difficulties with understanding ratios is
well taken. It often helps if one emphasizes the distinction between
extensive and intensive quantities ; e.g. force and pressure, mass and
density, electric force and field, electric potential and potential
energy. Once they realize that the intensive quantities do not depend
on the size (or extent) of the object, many seem to grasp the ideas a
bit better.

Ronald Newburgh