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Class 042 - Review - Complete Homework 21a Study for...

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Electric Potential What You Will Learn Today • Review charges, forces, fields, potential energy, and potential • What might be emphasized on Friday’s exam? Preparation for next class • Complete Homework 21a • Study for Friday’s exam!
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Reading Quiz A parallel plate capacitor has a negative plate at the bottom and a positive plate at the top. The magnitude of the electric field just above the negative plate is 300 V/m. The plates are 1.0 cm apart. Potential at negative plate is 0 V 1. What is the direction of the field? 2. What is the field midway between the plates? 3. What is the field just below the positive plate? 4. What is the potential midway between the plates? 5. What is the potential at the positive plate?
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Review: Charge and Electric Field • Charge – Intrinsic to matter – Positive or negative – Scalar, measured in Coulombs (C) • Electric Field – Effect of charge(s) on the space around it/them – Vector, measured in N/C or V/m – Points away from positive charge; towards
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