Please don\'t re-post previous solutions.My solutions did not match. I would app
ID: 1454804 • Letter: P
Question
Please don't re-post previous solutions.My solutions did not match. I would appreciate a worked out response (with actual answer). Thanks! N=140 R=0.140, B= (4/5)^3/2UoNI/R, Uo= 4pi*10^-7 1. The uniform purely axial magnetic induction required by the experiment in a volume large enough to accommodate the Lorentz Tube is produced by the Helmholtz Coils. What is the magnetic induction due to a coil current 1.5 Ampere? Convert the result in the still popular non-SI unit Gauss (1 Tesla = 10^4 Gauss). 2.2. In a single measurement student applied electron gun accelerating voltage of 240 V and measured electron orbital diameter of 8 cm. The applied magnetic induction was the same as in Problem 1. What specific charge of the electron follows from the above measurement?
Explanation / Answer
By putting the values in the given formula
B = (4/5)^(1.5)(mu*N*I/R)
B = (0.715541752)(4*pi*10^-7*140*1.5/0.140)
B = 1.348764428 * 10^-3 T
B = 13.48764428 Gauss
As we know that for electron gun experiment
e/m = 2Ve/B2r2
By putting the given values
e/m = 6.59643123 * 10^-9