Ch. 20 Static Electricity Ch. 21 Electric Fields Ch. 22 Current Electricity

Download Ch. 20 Static Electricity Ch. 21 Electric Fields Ch. 22 Current Electricity

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<p>ELECTRICITY</p> <p>ELECTRICITYCh. 20 Static ElectricityCh. 21 Electric FieldsCh. 22 Current ElectricityStatic ElectricityMost things are neutral..But electrons can be transferred causing a charge to occur temporarily.Opposites attract and Likes repel More surface area, more electrons exposedLack electrons=+Excess electrons= -</p> <p>http://adsoftheworld.com/media/tv/skittles_tube_sock</p> <p>Conductors-electrons move easilyInsulators-electrons do not move easily</p> <p>Charging by Induction-charging over distanceGrounding-connecting to Earth to rid of excess electronsCharging by Conduction-charging by touchingElectroscopeStronger when closer</p> <p>Coulombs LawForce depends on DistanceForce depends on ChargeUnit of charge-CoulombElectron: 1.60 x 10-19 C1 C=6.24 x 1018 electrons or protons</p> <p>K=9.0x 109 Nm2/C2PracticeSphere A, with a charge of +6.0 microC is located near another charge sphere B. Sphere B has a charge of -3 microC and is located 4.0 cm to the right of AA. What is the force of B on A:</p> <p>100 NB. A third sphere C, with a +1.5 microC charge, is added to the configuration. If it is located 3.0 cm directly beneath A, what is the new net force on sphere A?</p> <p>130 N, 42 degrees SWELECTRIC FIELDS CH. 21E=F on q/q2</p>