Dr. Srinivasan 9/22 Notes
Dr. Srinivasan 9/22 Notes PHYS 133
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This 1 page Class Notes was uploaded by Josh Matthews on Sunday September 25, 2016. The Class Notes belongs to PHYS 133 at California Polytechnic State University San Luis Obispo taught by Dr. Prashant Srinivasan in Fall 2016. Since its upload, it has received 56 views. For similar materials see General Physics III in Physics at California Polytechnic State University San Luis Obispo.
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Date Created: 09/25/16
9/22/16 Physics 133—Dr. Srinivasan 4 Fundamental Forces: 1) Strong a. The force -15t holds the nucleus together b. Range: 10 m, the diameter of a medium sized nucleus 2) Electromagnetic 1 a. Strength: of the strong force 137 b. Fundamental property: charge c. Range: infinite d. Repulsion is the surest test for electrical interaction 3) Weak a. Occurs in neutrino interaction b. Range: 10 , 0.1% the diameter of a proton 1 -6 c. Strength: 1,000,000 (10 ) of the strong force 4) Gravity a. Strength: 6 x 10-3of the strong force b. Range: infinite Charge A property of matter (Units−19oulomb) It is quantized-- |e=1.6×10 C Only two kinds of charges are known to us (positive and negative) Electrons are the primary charge carriers o Flow of electrons makes up an electrical current Charge can be transferred Law of Conservation of Charge: o Charge is a conserved quantity; the amount of charge in a closed system is constant o Charge cannot be created or destroyed Closednon-interacting Charges interact by exerting forces on each other Charging—generating a region of excess charge o Charging by contactconduction o Charging w/o contact (no physical transfer)induction
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