A charged plastic comb is brought near a pile of uncharged pieces of paper. Through which process do the pieces of paper stick to the comb?

4. How do two objects with like charges interact? What is the evidence from your investigations?

16.) When you transfer a charge by touching or rubbing you are a. creating direct electrical current b. charging by contact c. charging by induction

11 Parallel Plate Capacitor No. CP79589-02 Two Points within a Field No. CP75989-04 3 Insulator and Conductor in a Field No. CP79589-01 IV Point and Plane No. CP79589-05 VI Faraday Ice Pail No. CP79589-03 Your design No. CP79589-06 Figure 6 The Overbeck Electric Field Mapping Apparatus' six field plates. 6. QUESTIONS 1. Why are the equipotential lines near conductor surfaces parallel to the surface and why per- pendicular to the insulator surface mapped? 2. Is it possible for two different equipotential lines or two lines of force to cross? Explain. 3. Explain, with the aid of a diagram, why lines of force must be at right angles to equipotential lines. 4. Under what conditions will the field between the plates of a parallel plate capacitor be uni- form? 5. How does the electric field strength vary with distance from an isolated charged particle? 6. Sketch the equipotential lines for an isolated negatively charged particle, spacing the lines to show equal difference of potential…

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