A Laboratory Manual of Physics and Applied Electricity Volume 1

A Laboratory Manual of Physics and Applied Electricity Volume 1

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ... conductor having the induced charge is insulated, and one when it is grounded. Experiment P2. The principle of the condenser. When a conductor connected to the earth is brought near a charged body, the potential of the charged body is reduced. If the conductor almost surrounds the charged body, and is very close to it, its potential will be very greatly reduced, although the amount of the charge remains absolutely unchanged. Another way of viewing this fact is to consider that the conductor lessens the quantity of free electricity on the charged body. The remainder of the charge is bound by the electricity induced on the near-by conductor. If, instead of maintaining the charge constant, the potential of the charged body is maintained constant, it will be found that the charge must be rapidly increased as the conductor connected with the earth is brought very near. A combination of two conductors, very close together, one of which is connected to the earth, is called a condenser. The capacity of such a condenser is enormously greater than the capacity of either of the conductors of which it is composed when measured in the absence of the other. In order to become familiar with the phenomena of the condenser, two forms are to be experimented with: The first form is an apparatus consisting of two vertical, parallel metal plates. These plates are both insulated, and are capable of motion along a line joining their centers. (1) Fasten a pith-ball by means of a conducting thread to one plate, so that the ball rests against the plate. (2) Connect the second plate to the earth, and charge the first one by means of an electrical machine. (3) Move the plates to and from each other, and note the effect on the pith-ball. (4) When the plates are quite near...show more

Product details

  • Paperback | 74 pages
  • 189 x 246 x 4mm | 150g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236629663
  • 9781236629661