Unformatted text preview: PHY 127 FINAL EXAM 5/19/2008 Show 2g of your work to receive credit In the circuit to the left 5,: 6.0 V
62: 3.0 V, R,=12.04‘; R 2: R3 =6.0 «1 a. Find the currents [magnitude and
direction] through each resistor. b. Find the voltage difference V — Xi
between points a and b a In the RLC series circuit shown at left
R = 30011,L = 0.20 H, and C =2.0/AF.
The source voltage is 100 V at an angular ﬁequency of 1000 rad/s. All
meters read rms voltage m the impedance of the circuit at this frequency?
b. What is the rms current?
0. What is the reading of each meter shown in the diagram?
(1. What is the phase angle between the source voltage and the
B a. What is the resonant angular ﬁequency of the circuit?
b. What is the current at resonance? c. What is the reading of each meter at resonance? Source V still 100
3. How much Voltage must be used to accelerate a proton [ q l;=+1.6x10«/9C]
to touch the surface of an iron nucleus ? The radius of the iron nucleus is
4.0 x 10451;; the radius of the proton is 1.2 x 10131; and the charge on the iron nucleus is 26 times the charge on the proton. Assume both are spherical and uniformly charged. ...
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- Spring '08