ytu ne Deaiit Tadius? if so which one and why? (The theory section and Figure 1
ID: 2037708 • Letter: Y
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ytu ne Deaiit Tadius? if so which one and why? (The theory section and Figure 1 may assist you in answering this question) PRE-LAB QUESTIONS Calculate the theoretical value of elm using the known values of the electric charge and electron mass (which you can look up in a textbook). 2. A coil has a radius of R 12.1 cm and N 104 turns. If the current is 3.9 A, what is the magnetic field B, in Tesla, from equation 7? 3. Using the magnetic field in problem 2, if the accelerating voltage is 91 V, and the radius of the electron orbit is 1.1 cm, what is e/m from equation 5? 4. Calculate the percent error between your result for problem 3 and the theoretical value of e/m. 8 MacBoolk 88? 0Explanation / Answer
1.
m = mass of electron = 9.1 x 10-31 kg
e = charge on electron = 1.6 x 10-19 C
Charge to mass ratio is given as
e/m = (1.6 x 10-19)/(9.1 x 10-31)
e/m = 1.76 x 1011
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