MEDRADSC 1C03 Lecture Notes - Lecture 8: Permittivity, Farad, Electric Field
1 Oct 2017
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Midterm test monday october 23 3:30 to 4:20 location: uh 213. Problem 4 an electron travelling at 7,260,000 m/s is fired into the chamber below in which there is a uniform electric field. The furthest the electron makes it into the chamber is 10cm. Note: mass of an electron = 9. 11x10-31 kg. Capacitance: a(cid:271)ilit(cid:455) of a (cid:271)od(cid:455) to store a(cid:374) ele(cid:272)tri(cid:272)al (cid:272)harge. >any object that can be electrically charged exhibits capacitance. Capacitor a device for storing electrical charge. Consist of a pair of conducting plates separated by an insulating material (oil, paper, water) v+ v- Basic elements of capacitor (two isolated conductors of any shape) two plates. Also a measure of the extent to which a capacitor can store charge. >a measure of how much charge must be put on the plates to produce a certain potential. >the greater the capacitance, the more charge is required. 1 farad= 1 f= 1 coulomb per volt= 1 c /v.
