# Shared Flashcard Set

## Details

Physics 1251 note cards
study for the OSU physics 1251 exam
15
Physics
01/13/2013

Term
 electric field from a charged rod
Definition
 dE = kdq/(x^2)=kλdx/(x^2)   E=kQ/(a(l+a)) a = distance to rod l = length of rod
Term
 Electric field from a ring of charge
Definition
 E = kQx/(a^2 + x^2)^(3/2)
Term
 force of a charged particle
Definition
 F = qE
Term
 Electric field inside and outside a spherical charge distribution
Definition
 Inside: E = Kqr/(a^3) a = radius of sphere outside: E = kq/r^2
Term
 Electric field around a rod
Definition
 E = 2kλ/r
Term
 Electric field in a plane of charge
Definition
 E = σ/2ε
Term
 charge inside of a conductor? electric field inside of a conductor?
Definition
 0
Term
 Potential difference equation from potential energy and electric field
Definition
 V = U/q = -∫E•ds
Term
 Current defined by drift speed
Definition
 I = nAvde-
Term
 Parallel plate capacitance
Definition
 C = Aε/d   AED equation
Term
 Current Density (J)
Definition
 J = I/A = nvde- J = σE
Term
 Resistance of a wire
Definition
 R = ρl/A
Term
 Resistance and temperature
Definition
 R = R0[1+α(T-T0)] ρ = ρ0[1+α(T-T0)]
Term
 Potential difference (ΔV) from a battery
Definition
 emf - Ir ΔV = ε-Ir
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