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Physics 1251 note cards
study for the OSU physics 1251 exam
15
Physics
Undergraduate 1
01/13/2013

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Cards

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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