Magnetism and Electricity. E-book. Formato PDF Arthur Wm   -  Forgotten Books, 2017  - 

Tms small volume is intended as an introduction for beginners, and primarily for those who are reading for the South Kensington Elementary Examination in Magnetism and Electricity. It will be seen, however, that several chapters which are not necessary for that examination have been inserted in order to cover the course usually taken in a year's school work. The book, which is by no means an examination manual only, is the result of practical experience in teaching, and it has been thrown into experimental form from a conviction that, if the student is to gain an adequate knowledge of the subject, it is absolutely necessary for him to acquire it by experiment. Scientific knowledge derived from mere book-work, with a View to pass some particular examination, is almost useless, and indeed is not unlikely to produce a result the opposite of that intended by the student.