Exam
General Physics 219
Fall 2010
Final
1
Problem 1
d
In class we shone green light from a laser with wave-length = 532nm
on a grating with 600 lines per mm.
a) Compute the angles m=1 and m=2 at whic
Exam
General Physics 219
Fall 2010
Midterm 2
1
Problem 1
R=?
=?
6
-3
v=10 m/s
|B|=10 T
d=1mm
In a certain oscilloscope an electron beam is deected by a magnetic eld
as indicated in the gure. The speed
Lab Syllabus
Purdue University - Physics 21900
Fall 2011
PHYSICS 21900 LAB SYLLABUS
FALL 2011
Faculty:
Prof. Martin Kruczenski Room 274, [email protected]
Textbook:
College Physics Reasoning and Relat
6. Lecture 6
6.1 Energy contained in a capacitor
We said that a capacitor stores energy. We now compute how much energy it actually
contains. A way to do that is to consider how much work we need to s
7. Lecture 7
7.1 Capacitor charge and discharge
In the same way we can charge a capacitor through a resistor we can also discharge
it. In the circuit of g.35 we have a switch with two positions. In on
8. Lecture 8
8.1 Capacitors in series and parallel
In the same way that one can analyze resistors in series and parallel one can understand
what happens for capacitors in series and parallel. Notice t
9. Lecture 9
9.1 Magnetic forces on an electric current
Since an electric current is charges in motion it follows that a wire through which a
current circulates will experience a force in the presence
10. Lecture 10
10.1 Force between currents
We saw that a current circulating along a wire creates a magnetic eld. If another
current is in its vicinity it experiences a force. In g.59 we see a simple
11. Lecture 11
11.1 Inductors
A solenoid a part of a circuit is also called an inductor. Its purpose is to store energy
similarly to a capacitor. However it stores energy in a magnetic eld as opposed
12. Lecture 12
12.1 LR circuit, comparison with RC
An inductor stores energy in the form of a magnetic eld similarly as a capacitor stores
energy in the form of an electric eld. In both cases we can c
13. Lecture 13
13.1 Electric generators and alternate current
We discussed before that a cable moving in a magnetic eld acts as a battery since
the magnetic eld creates a force that moves the charges
14. Lecture 14
14.1 AC circuits: capacitors and inductors
14.1.1 Capacitors
Consider a circuit as in g.78 which is called a low-pass lter for reasons we will see
shortly. The AC generator determines t
16. Lecture 16
16.1 Refraction
Lets have a a look at Snells law
n1 sin 1 = n2 sin 2
(16.1)
from the point of view of waves. First we can dene a wave front as the surface where
the waves have maximum a
17. Lecture 17
17.1 Concave mirror
Continuing with our study of the concave mirror we can nd now where the image
is formed. In the approximation of small angles we are using, all the rays of light
ema
Exam
General Physics 219
Fall 2010
Midterm 1
1
Problem 1
a) Compute the total resistance of the congurations in the gure.
2
Problem 2
I want to build an oscillator circuit but in the specications it r
19. Lecture 19
19.1 Interference
The principle of superposition implies than when two electromagnetic waves meet each
other, the total electric and magnetic elds are the sum of the electric and magnet
20. Lecture 20
20.0.4 Fresnel Equations
In the previous lecture we discussed that light can experience a 1800 phase shift when
reected from an interface. Here we are going to show that this follows fr
21. Lecture 21
21.1 Diraction and optical instruments
In the last lecture we saw that parallel rays after going through a slit are not parallel
anymore but have a range in angles from zero to m = . Ei
22. Lecture 22
22.1 Photons
As already discussed, the correct explanation of the photoelectric eect is that electromagnetic waves are made of small quanta called photons. Each photon has energy and
mo
23. Lecture 23
23.1 De Broglie waves
We have seen that light appears to be a wave but, under careful examination, behaves
as if composed of particles. Nevertheless all the wave properties of interfere
24. Lecture 24
24.1 Nuclear Physics
24.1.1 Constituents and binding energy
The atomic nucleus has a typical size of 1015 m and therefore is much smaller than the
typical atomic size 1010 m. Using the
15. Lecture 15
15.1 Demo: Sound transmission with (laser) light
Consider the circuit in gure 85 where and audio source drives the primary of a transformer. The secondary of the transformer is in serie
Preprint typeset in JHEP style - PAPER VERSION
Lecture notes for General Physics 219
Martin Kruczenski
Department of Physics, Purdue University, 525 Northwestern Avenue,
W. Lafayette, IN 47907-2036. E
2. Lecture 2
2.1 Electric charge
In the same way that gravity describes the interaction of masses, electrostatics describes
the interaction of electric charges. Notice that we say electrostatics becau
3. Lecture 3
3.1 Dipole and quadrupole
The law of addition of vectors allows us to nd the electric eld produced by two
charges. If the two charges are of equal magnitude but opposite sign (and separat
4. Lecture 4
4.1 More on electrostatic potential
From formula (3.12) we see that V cannot have abrupt jumps otherwise the electric eld
would be innite. One example is the potential of a charged sphere
5. Lecture 5
5.1 Resistivity
For a conductor of uniform cross sectional area A it turns out experimentally that the
resistance is given by
L
R=
(5.1)
A
where L is the length and is the resistivity (me
Physics 219
Practice Exam 1
Summer 2004
Multiple Choice (100 points total)
The following 18 multiple choice questions are to be answered on the OP-SCAN sheet with
a pencil. There is no penalty for gue
PHYSICS 21900 COURSE SYLLABUS, FALL 2011
Lecturer: Prof. Martin Kruczenski Room 274, [email protected]
Lab: Dr. Andrzej (Andrew) Lewicki Room 142, [email protected]
Recitations: Andrew Kramer (akrame
18. Lecture 18
18.1 Lens equation
Going back to the convergent lens, we can once again nd an equation that determines
the position and size of the image given the position and size of the object. The