# Shared Flashcard Set

## Details

Electric Potential
Electric Potential
12
Physics
11/13/2008

Term
 Electric Potential (Va) (3) unit?
Definition
 Potential Energy per unit chargeVa=PEa/qV=k Q/rvolts (V) 1V=1J/C
Term
 Electric Potential ENERGY
Definition
 U = W = kq1q2/r
Term
 Change in Electric POTENTIAL (ΔV)
Definition
 ΔV= - ΔW/q
Term
 Workelec (2)
Definition
 W = qV = qEd
Term
 Electric Field
Definition
 E = -ΔV/d
Term
 Equipotential
Definition
 line or surface which potential is constantperpendicular to electric field lines (E)
Term
 Electron Volt (eV)
Definition
 energy gained by an electron moving through a potential difference of one volt
Term
 Capacitor (2)
Definition
 ability to store elec charge (q)can retain charge even when disconnected from voltage source
Term
 Capacitance
Definition
 C = Q/V (F)C = €0 A/d1 Farad = 1 C/V
Term
 Dialectrics (3)
Definition
 an insulatorreduces electric field (E) reduces PE
Term
 Dielectric Strength
Definition
 maximum field a dielectric can experience without breaking down
Term
 Stored energy (PE) (3)
Definition
 PE = 1/2 QV = 1/2 CV2 = 1/2 Q2/C
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