Three Charges
Three charges are arranged as shown in the figure. How much work was necessary to move the middle
charge from infinity into this arrangement (with the other two charges already fixed in
Square Loop
A square loop of wire surrounds a solenoid. The side of the square is 0.1 m, while the radius of
the solenoid is 0.025 m. The square loop has a resistance of 30 . The solenoid has 500 turn
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Magnetic forces and Particle Motion.
Magnetic forces are more complicated than gravity in several important ways. Unlike gravity, but
similar to the ordinary Coulomb force between charged parti
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P102: Quiz 7 Week 8
In an R-L-C circuit, as shown to the left,
the generator produces an alternating
voltage with a maximum ofV 0 =1 OOV and
a frequency off=50Hz. The other circuit
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P102: Quiz 4 Week 5
Three charged particles with identical mass and initial velocity enter a region of uniform
magnetic field directed out of the page. They undergo circular motion before
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P102: Quiz 6 Week 7
D3S
A rectangular loop with total resistance R = 2-3 Q is rotating about the DC axis. At the
instant the loop is in the plane of the paper (as shown in the figure),
it
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P102: Quiz 8 Week 9
A billiard table is similar to a box with perfectly flat mirrors. Follow the trajectory of the
(white) cue ball as ifit were a laser beam which reflects offthe surfa
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P102: Quiz 9 Week 10
A laser beam travels from air (n=l) through a slab of unknown material (n=?) and
another slab of glass (n=l.5) as shown below.
n=l.O
n=1.5
1. Determine n, the index
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PHY2049 Fall 2010
Profs. S. Hersheld, A. Petkova
Exam 1 Solution
1. Four charges are placed at the corners of a rectangle as shown in the gure. If
Q1 = 1 C, Q2 = 2 C, Q3 = 1C , and Q4 = 2C , what is t
Phy102 HW7
AC I
The series RLC circuit shown above is known to have rms voltages across the inductor and
capacitor of VL = 80 V and VC = 20 V. The resistor has a resistance R = 150 and the rms
voltage
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Phy102 HW 8
Electromagnetic Waves
An electromagnatic wave is traveling in vacuum with frequency 5.7 x 1014 Hz. The wave has average total
energy density of 5.3 x 10-6 J/m3.
(a) What is the speed of th
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Phys102 HW9
Concave Mirror
A concave mirror is made by coating the inner surface of a segment of a spherical shell with a
reflecting material. An object with height 1.5 cm is placed on the axis and at
Phy102 HW#10
Focal Lens
An object 5 cm high is located 75 cm from a converging lens (X1 = 75 cm) of focal length f1 = 50
cm. A second converging lens of focal length f2 is located 200 cm from the firs
Phy102 HW11
Missing Order
A two slit interference/diffraction pattern is set up (thus for this problem we will take into
account the effects of both diffraction and interference). You are given that t