PHYS 212: Study Guide for Section IV

The Fact that we dealing with five chapters may look too much. We are only selecting important topics and examples from this chapters. In chapter 32, for instance, we just list the Maxwell's equation as a summary of what we learned the large part of this semester. The only chapters covered in some detail re 29,30 and 31.  From the rest ,(chapters  32& 33) we select topics.

General Advice

A. Review the key terms, principles, and concepts in your notes..

B. Review the summary of equations at the end of each chapter.

C. Review sample problems done in the book and you notes 

D.  Review homework and recommended end of chapter problems and exercises

E. Be able to state basic principles in words and mathematically.

Ch. 29 Magnetic Fields

Be able to calculate the force on a particle moving through a magnetic filed (Magnitude using F=qvB sin(ø) and dirextion using the right hand rule).
Be able to calculate the force on a particle moving through a magnetic filed (Magnitude using F=ilbB sin(ø) and direction using the right hand rule).
Be able to caluclate the torque on a coil placed in a magnetic field
Be able to calculate the q/m, R, v , V, KE, ac, etc. for charged particles tracing a circular path in a magmetic filed such as in a spectrpmeter( sample problem 29-3) and a cyclotron(Section 29-6)

Ch. 30 Magnetic Fields Due to Currents

Be able to calculate the magnetic filed due to finite and infinite current carrying straight and circular wires.
Be able to calculate B due to long wires, solinoids and toroids using Ampere's Law.
Be able to calculate the force between two parallel wires carrying current in the same and opposite direction.
Be able to calcualte the magnetic fielld innside and outside a thick current carrying wire.

Ch. 31: Faraday's and Lenz's Law of Induction (sections 31-1 to 31-6 inclusive)

Be able to state mathematically and in word's Faraday's Law and Lenz's Law.
In the class demonstration, two identical looking blue rods were drooped into an aluminum tube. One of them fell freely while the other one took a very long time to fell through. How is this explained?
Be able to calculate the EMF induced in a conductor moving across a magnetic field.
Be able to derive the EMF   due to a generator -- a coil that rotates inside a magnetic field- using Faraday's Law. Why is the EMF not  a constant.

Ch. 32  Maxwell's equations (section 32-11)

Be able to list four of  Maxwell's equations and be able to identify which corresponds to: a) Gauss' Law for Electric fields    b) Gauss' Law for Magnetic Fields     c) Faraday's and Lenz's Law  and d) Modified Ampere's Law. See sections (32-3).
How did Maxwell derive that all EM waves travel at the speed of light.( See equation 34-18, page 809))
What do the acronyms AM and FM stand for ? Which one is more clear and why? which signal  goes further?

Ch. 33  AC Circuits( See table 33-2 and Secton 33-9)

Be able to calculate the resistance (R), the capacitive reactance (Xc), the inductive reactance (Xl), and the impedance (Z) of an AC LRC circuit. See table 33-2, page 784)
Be able to calculate the rms current and voltage in an LRC AC circuit (see example 3-7)
Be able to calculate the resonance frequency of an LRC circuit by adjusting XC and XL to cancel. How is this relevant to tuning radio and TV stations. (see page 787-788)