3. [15 points) Fur the circuit heluw nd the total current and the current through each reshtur.
an 53:5 [1
_L, L- e trawl I
a; He '* lC'Ha w Wm ag
ML
bw H1 #7 L
r '1' R 1
# i H {La 4
J I {til 17> m If mm u
i 11: t '3'; /
5 g 02;? JD
Ree-412G}
Quiz reminder
Quiz next Wednesday 8:00am 8:50 am Refer to course website for exam location No make-up quiz! 1 conceptual and 2 numerical problems Coverage: Chapter 19 Bring your calculator Basic formulas will be provided as well as universal physic
Physics E1bx
Feb. 24, 2015-Mar. 3, 2015
Physics E1bx: Assignment for Feb 24 - Mar. 3
Homework #3 Capacitors, Energy, Power, Kirchhoffs Laws
Due Tuesday, Mar. 3, at 6:00 PM
This assignment must be turned in by 6:00 pm on Tuesday, Mar. 3. Late homework can
PHYS-102
LAB 2
Millikan Oil Drop Experiment
1. Objective
The objectives of this lab are to demonstrate the quantized nature of the electrical charge of
an electron and to see how this charge directly interacts with an external Electric Field.
2. Theory
In
Gauss Law
is based on the inverse-square behavior of the electric force between point
charges.
for calculating the electric field of highly symmetric charge distributions.
is important in understanding and verifying the properties of conductors in
electro
Electric Fields
Chapter 21
Electric Charges
There are two kinds of electric charges
Called positive and negative
Negative charges are the type possessed by electrons.
Positive charges are the type possessed by protons.
Charges of the same sign repel on
Electric Potential Energy, cont
The work done within the charge-field system by the electric field on the charge is
r r
r r
F ds qoE ds
r r
U =qoE ds
For a finite displacement of the charge from A to B,
B r
r
U UB U A qo E ds
A
the line integral does not
Chapter 26
Capacitance and Dielectrics
Definition of Capacitance
The capacitance of a capacitor is the amount of charge the capacitor can
store per unit of potential difference.
Q
C
V
The SI unit of capacitance - farad (F).
- always be a positive quantit
Chapter 27
Current and Resistance
Electric Current
Electric current is the rate of flow of charge through some region of space.
The SI unit of current is the ampere (A).
1A=1C/s
The symbol for electric current is I.
Section 27.1
Charge Carrier Motion in
Chapter 28
Direct Current Circuits
Charge conservation K. rules.
Direct current
Electromotive Force - Voltage
The electromotive force (emf), , of a battery is the maximum possible voltage
that the battery can provide between its terminals.
The positive te
Chapter 24
Gausss Law
Gauss Law
is based on the inverse-square behavior of the electric force between point
charges.
for calculating the electric field of highly symmetric charge distributions.
is important in understanding and verifying the properties of
Chapter 23
Electric Fields
Electric Charges
There are two kinds of electric charges
Called positive and negative
Negative charges are the type possessed by electrons.
Positive charges are the type possessed by protons.
Charges of the same sign repel on
Chapter 29
Magnetic Fields
Force on a Charge Moving in a Magnetic Field, Formula
The properties can be summarized in a vector equation:
r
r r
FB qv B
r
FB is the magnetic force
q is the charge
r
v is the velocity of the moving charge
r
B
is the magneti
SAMPLE QUIZ-II
Time Limit: 50 min.
PHYS-102
_
Name_
Recitation. Sec
NOTES:1. For Prob.1, please circle the answer of your choice for each part.
2. For Probs 2 and 3, your solutions must have adequate details to get full credit.
Please read the problems ca
May 16, 2013
Physics 102 Chapter 27
Current and Resistance
27.1 Electric Current
Flow of electric charge through material
Flow depends on both the material and the potential difference across the material
Analogy between water and current
o Amount of w
May 23, 2013
Physics 102 Chapter 29
Magnetic Fields and Forces
29.1 Magnetic fields and Forces
B represents the magnetic field
Compass points in this direction
Earths magnetic field is like burying a gigantic bar magnet deep within the earth.
Properties o
Direction: Right-Hand Rule #1
This rule is based on the right-hand rule
for the cross product.
Your thumb is in the direction of the
force if q is positive.
The force is in the opposite direction of
your thumb if q is negative.
Force on a Charge Moving in
Electric Potential Energy, cont
The work done within the charge-field system by the electric field on the charge is
F ds qoE ds
U = qoE ds
For a finite displacement of the charge from A to B,
B
U UB U A qo E ds
A
the line integral does not depend o
Capacitance
http:/webphysics.davidson.edu/physlet_resources/bu_semester2/index.html
Field and potential : spheres
1. Voltage on r=1 m sphere: 10^6V -> 1mC,
2. voltage on earth 1mC -> V=1 relative to inf.
3. to store energy one need the second wire.
Defini
Physics 102: Fundamentals of Physics II
Capacitors and batteries
Michelle Dolinski
1/29/2016
Review
Last time we defined the capacitance
C
Q
V
We derived the capacitance of a parallel plate capacitor with area A
and separation d
0 A
C=
d
And we found the
Physics 102: Fundamentals of Physics II
Capacitance
Michelle Dolinski
1/27/2016
Electric potential energy
Consider a spherical conductor of radius R with a charge q. How
much work must be done to bring in an additional amount of charge
dq?
Electric potent
Physics 102: Fundamentals of Physics II
Electric Field and Gausss Law
Michelle Dolinski
1/13/2016
Review
Last week we found the following expressions for point charges:
I
Electric force between two point charges q1 and q2 :
~F = kq1 q2 r
r2
I
Electric fie
Physics 102: Fundamentals of Physics II
Equipotentials
Michelle Dolinski
1/22/2016
Quiz I
Quiz I is this coming Wednesday 1/27/2016, 8-8:50 am, Bossone
Auditorium. You should bring something to write with and a
calculator. The quiz will cover:
I
Chapters
Physics 102: Fundamentals of Physics II
Electric Fields
Guest lecture: Ben Relethford
1/8/2016
Coulombs Law
Last time we saw that the force exerted on one point charge by
another point charge was given by Coulombs Law:
~F = kq1 q2 r
r2
1
where k = 4
= 8.9
Physics 102: Fundamentals of Physics II
Course Overview
Charge, Conductors and Insulators, and Coulombs Law
Michelle Dolinski
1/6/2015
Instructor: Professor Michelle Dolinski
[email protected]
(215)895-6860
913 Disque Hall
Office hours: Wednesday 10 am
PHYS-102
LAB-01
Coulombs Law
1. Objective
The objective of this experiment is to demonstrate that the force between two
stationary charges is directly proportional to the product of the charges and
inversely to the square of the distance between them.
2.
Lab#2 phys 102
Page 1 of 2
Coulombs Law. Force between Charged Plates
1. Objective: In this lab, you will investigate the electrostatic force between charged metal
plates and determine the electric permittivity of free space, o, .
2. Theory: two oppositel
Electric Fields
Chapter 21
Electric Charges
There are two kinds of electric charges
Called positive and negative
Negative charges are the type possessed by electrons.
Positive charges are the type possessed by protons.
Charges of the same sign repel on