Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
Homework4
1
Name:
Problem 1: Surface charges on capacitors (Livingston 33)
a) A voltage of 9 volts is applied acoss an empty capacitor with plates of 10 cm 2 area separated by a
distance of 3 mm. Wha
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
North Carolina State University
MSE355 Spring 2016. Electrical, Magnetic and Optical Properties of Materials
Homework 4 Key
Problem 1: Surface charges on capacitors: maximum 4 points
a)
C a= 0
A
d
q a
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
North Carolina State University
MSE355 Spring 2014. Electrical, Magnetic and Optical Properties of Materials
Homework 4 Key
Problem 1:
( H )=0
(
J+
D
=0
t
)
J =
J=
( Dt )
( . D)
t
Substitute . D=
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
North Carolina State University
MSE355 Spring 2016. Electrical, Magnetic and Optical Properties of Materials
Homework 6 Key
Problem 1: The Photoelectric Effect (max 3 points)
Take c = 2.998e8 m/s. And
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
Homework1
1
Due1/20/16
Name:
Problem 1: General Electrostatics Review
a. A copper penny (Z = 29) has a mass of 3 g. What is the total charge of all the electrons in the
penny?
b. Use Coloumbs law and
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
North Carolina State University
MSE355 Spring 2016. Electrical, Magnetic and Optical Properties of Materials
Homework 7 Key
Problem 1: Photon and Particle Waves (Livingston 84)
a. a photon of 50 eV =
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
Topics Covered
1. Real and imaginary dielectric constant
2. Sources of polarization
3. Light absorption in an insulator (BeerLambert)
4. Other lightmatter interactions (diffraction, scattering, refl
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
North Carolina State University
MSE355 Spring 2014. Electrical, Magnetic and Optical Properties of Materials
Homework 2 Key
Problem 1: Resistivity in a Lamellar structure (Livingston CH1 Problem 17)
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
North Carolina State University
MSE355 Spring 2016. Electrical, Magnetic and Optical Properties of Materials
Homework 1 Key
Problem 1: General Electrostatics Review
a) Copper: MCu = 63.546 g/mol, m =
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
Homework7
1
Name:
Problem 1: Photon and Particle Waves (Livingston 84)
Calculate the velocity, momentum, and wavelength of the following objects:
a. a photon of 50 eV energy,
b. an electron accelerat
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
Homework6
1
Name:
Problem 1: The Photoelectric Effect (Livingston 82)
We perform the photoelectric experiment on a sample of tantalum, for which the barrier to electron
escape from the surface (work
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
Homework5
1
Names:
Problem 1: Plane wave in NaCl crystal (Livingston 41)
A plane wave of orange light ( = 5 10 14 Hz), polarized with an electrid field amplitude 3 10 4 V/m in
the xdirection, enter
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
Homework3
1
Name:
Problem 1: Derivation of the equation for charge conservation (Livingston 21)
The divergence of a curl is zero. From that and Maxwells equations, derive the following equation:
= J
Electrical, magnetic, and optical properties of materials
MSE 355

Spring 2016
North Carolina State University
MSE355 Spring 2016. Electrical, Magnetic and Optical Properties of Materials
Homework 5 Key
Problem 1: Plane wave in NaCl crystal (Livingston 41) (max 2 points)
a)
14