Fundamentals of Physics Extended
Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 41, Problem 11Q
To determine

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Regarding energy gap Eg of Si and Ge:

(a) Both substances have the same number density of charge carriers at room temperature.

(b) At room temperature, germanium has a greater number density of charge carriers than silicon.

(c) Both substances have a greater number density of conduction electrons than holes.

(d) For each substance, the number density of electrons equals that of holes.

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Report on the percentage errors (with uncertainty) between the value of 'k' from the F vs displacement plot and each of the values of 'k' from the period measurements. Please comment on the goodness of the results.   Value of k = Spring constant k = 50.00 N/m Each of the values of k from period measurements:  Six Measurements of time for 5 osccilations: t1 = 7.76s, t2=8.00s, t3=7.40s, t4=7.00s, t5=6.90s, t6=7.10s (t1-tavg)^2 = (7.76-7.36)^2 = 0.16%(t2-tavg)^2 =(8.00-7.36)^2 = 0.4096%(t3-tavg)^2 =(7.40-7.36)^2 = 0.0016%(t4-tavg)^2 =(7.00-7.36)^2 = 0.1296%(t5-tavg)^2 =(6.90-7.36)^2 = 0.2116%(t6-tavg)^2 =(7.10-7.36)^2 = 0.0676
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Based on the two periods (from hand timed and ultrasonic sensor), find the value of 'k' they suggest from the physics and from the value of the hanging mass. hand time period is 1.472s and ultrasonic sensor time period is 1.44s
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