Octobe
Octobe
Resistance
V
Resistance is defined to be R . That is, we apply a voltage V, and ask
i
how much current i results.
This is called Ohms Law.
If we apply the voltage to a conducting wire, the current will be very large
so R is small.
If we ap
Kirchhoffs Rules
Junction Rule: At any junction,
the sum of the currents must
equal zero:
i 0
junction
Loop Rule: The sum of the potential
differences across all elements
around any closed circuit loop must
be zero:
V 0
closedloop
For a move through a
re
October 17, 2007
Resistance
V
Resistance is defined to be R . That is, we apply a voltage V, and ask
i
how much current i results.
This is called Ohms Law.
If we apply the voltage to a conducting wire, the current will be very large
so R is small.
If we
1. For the circuit shown, the current i3 is found to be i3 =
3.5 A.
a) Determine the potential difference Va Vb.
b) Determine the battery emf .
c) Determine the current i1 (the current to the right through the 6 resistor).
d) If the 5 resistor is made usi
Linear vs Non-Linear Circuits; Magnetic Field Measurements
Lab Report
Your Name: ? Partners Name: ?
Section: ? Date: ?
1. Report your least-squares-fit values for both the equivalent circuit resistance and R 68 in
industry-standard form (uncertainty round
Electric Potential and RC Discharge - Lab Report
Your Name: Timothy McQuade Partners Name: Kyle Foley
Section: BX1E Date: 11/11/16
As always show your mathematical work with appropriate equations.
1. Using a single point charge of 2, indicate where (how m
Linear vs Non-Linear Circuits; Magnetic Field Measurements
Lab Report
Your Name: Tim McQuade
Section: BX1E
Partners Name:Kyle Foley
Date: 11/20/16
1. Report your least-squares-fit values for both the equivalent circuit resistance and R 68 in
industry-stan
The Electric Field Lab Report
(Due by midnight of the day of the Lab)
For Full Marks you must show your work. Repeated calculations need only be
presented once.
Name: Stuart Campbell
Partner: Nicolas Pingal
Section: DX1A, Date 3/22/17
Note: It is always i
Electrostatic force Coulombs Law
1
What do big people say?
An equation is for eternity.
- Albert Einstein
| |
=
.
Its not that Im so smart,
its just that I stay with problems longer.
- Albert Einstein
A jug fills drop by drop.
- Buddha
2
Objective
Electric field in conductors
Objectives
6. Know the following facts about electric fields in and around
conductors:
a)
The electric field is zero everywhere inside a conductor.
b)
An excess charge on an isolated conductor resides
entirely on its surface.
Electric potential and
potential difference
Objectives
7.
a)
Calculate the potential difference between two specified
locations in a uniform electric field .
b) Know the equipotential surfaces for a uniform electric
field and their relationship to the fie
Electric field
How to succeed in the course!
1.
Attend lectures, conferences, and labs.
2.
Review the lectures and conference problems.
3.
Read the suggested Units from Textbook to understand the
concept on the material.
4.
Solve as many problems suggeste
Electric field lines
Objectives
5. Sketch qualitatively the electric field lines associated with:
a) a single point charge of given polarity;
b) two or more stationary point charges of given relative
magnitudes and polarities.
(c) Given a field plot, you
2) A physics book slides off a horizontal table top with a speed of 1.10 m/s . It strikes the floor after a
time of 0.350 s . Ignore air resistance.a) Find the height of the table top above the floor. b) Find the
horizontal distance from the edge of the t
The equations of motion with constant acceleration
apply to any straight-line motion with constant acceleration ax.
vx v0x axt
x x0 v0xt 12 axt2
2
2
vx v0x 2ax x x0
v0x vx
x x0
t
2
Direction of the acceleration vector
The direction of the acceleratio
1 The following conversions occur frequently in physics and are very useful. Use
and 1h
=3600s
to convert 60 mph t
acceleration of a freely falling object is 32 ft/s2
this acceleration in units of m/s2
units of kg/m3
(a)
(b)
o units of ft/s
. Use 1ft=30.4
1. A disoriented driver drives a distance 3.25 km
north, then a distance 2.90 km
west, and then
a distance 1.50 km
south. Find the magnitude of the resultant displacement , using the method of
components and the angle with respect to + x axes.
Vector addi
The Impulse-Momentum Theorem
Name and section number:
Partners name and section number: 1. Make free-body diagrams of the ball and the force
plate just before and during an impact. Label the
forces. Ignore air resistance. You may enlarge the drawing canva
Conservation of Energy
Name and section number: Amelia Wilson A11
Partners name and section number: Joshua Galang A11
1. Make free-body diagrams of a mass oscillating up and down on the end of a spring for three
situations. Label the forces using mg and k
The Mass-Dependence of Friction
Name and section number: Amelia Wilson Section 11
Partners name and section number: Joshua Galang Section 11
1. Make free-body diagrams of a cart moving up and down the track. Label the forces.
T = Track
C = Cart
f = Fricti
Free-Body Diagrams
Name and section number: Amelia Wilson Section 11
Partners name and section number: Joshua Galang Section 11
1. Sketch the forces acting on the table, your body, and the force plate while you are standing in
equilibrium on the force pla
Work-Energy and Momentum
Name and section number: Amelia Wilson A11
Partners name and section number: Joshua Galang A11
1. Sketch free-body diagrams of a frictionless cart moving at constant velocity, a cart at rest, and
two carts colliding. Label the for
Static Equilibrium
Name and section number: Amelia Wilson A11
Partners name and section number: Joshua Galang A11
1. What are the conditions for equilibrium, expressed in both words and equations? The title
Static Equilibrium implies that there is be anot
One-Dimensional Kinematics
Name and section number: Amelia Wilson Section 11
Partners name and section number: Joshua Galang Section 11
1. Type the kinematical equations for velocity and position in the x-direction for constant
acceleration ax.
Velocity: