5.4 Preliminary Assignment 1) The radius of the Helmholtz coil (with N = 130 turns) used in an om experiment is (14.8+0.7) cm . The Coil Current is set to (1.80+0.01) Amps. The accelerating voltage required to achieve an electron beam diameter of (8.0+0.25) cm is (262.0+1) volts. Determine the value of m (with uncertainty) from this data and compare with the accepted value. 2) Using the same Helmholtz coil as in problem 1, a student keeps the Coil Current constant at a value of (1.80 +0.01) Amps while varying the accelerating voltage values. The recorded values for the accelerating voltages and corresponding diameters of the electron beam are recorded in the following Table. Plot AV vs. Rbeam, and obtain the value of /m (with uncertainty) from the slope from these data and compare with the accepted value. Accelerating Voltage Electron Beam Diameter (#1 Volt) (+0.25 cm) 156 6.0 208 7.0 262 8.0 324 9.0 396 10.0