1Electric Field (Ch 16, 7-9) Electrostatic & gravitational force act at a distance, no direct push or pull “uncomfortable” concept Electric Field extends out from every charged object other charges interact with field direction of field determined by motioninduced on a positive test chargeElectric FieldElectric Field - Ch 16, Prob 23 What are the magnitude and direction ofthe electric force on an electron in auniform electric field of strength 2360N/C that points due east?Electric Field - Ch 16, Prob 24 A proton is released in a uniformelectric field, and it experiences anelectric force of 3.75 x 10-14 N towardthe south. What are the magnitude anddirection of the electric field?Electric Field - Ch 16, Prob 30 What is the electric field strength at apoint in space where a proton (m - 1.67x 10-27 kg) experiences an accelerationof 1 million “g’s”?Think-Pair-Share Electric field is electric force per unitcharge. What is the analogous quantityfor gravitational force? Derive amathematical expression forgravitational field. Have you seen thisquantity before?2Electric Field LinesElectric Field Lines Draw field lines for the following chargedistributions- +Electric Field Lines Draw field lines for the following chargedistributions- -Electric Field Lines What would the electric field lines looklike for a uniform electric field?Gravitational Field Draw gravitational field lines around theearth.Electric Field and Conductors Electric field inside a conductor iszero (when charges are at rest) Any net charge on a conductor is onthe surface The electric field is alwaysperpendicular to the outside surfaceof a conductor.3Electric Fields and ConductorsElectrical ShieldingFaraday CageBoston Museum of