Which of the following provide scientific evidence for the quantization of charge? A. The charge found on single electrons and single protons B. Faraday's Law C. Milliken's Oil Drop Experiment D. The Hall Effect E. Two of the above provide evidence for the quantization of charge

1. Calculate the theoretical value of e/m using the known values of the electric charge andelectron mass.  2. A student performs this lab using a pair of coils with radius R = 10 cm and N = 98 windings.Using the equation in the theory, calculate the magnetic field at the center of both coils when thecoil current is 4.3 A.3. Using the same coil current as question 2, the student measures a beam radius of 7.5 mmwhen the accelerating voltage is 70 V. Using equation 5 in the theory (and your B-field fromquestion 2) calculate the value of e/m.4. Calculate the percent error between your result for question 3 and the theoretical value of e/m.

1. How do electrons move? 2. How to create continuous flow of electron? 3. Draw the diagram and explain how a dry cell (1.5-volt battery) produces voltage. 4. How does a Van de Graaff Generator works? 5. Explain why “Danger! High Current!” is technically more precise than the common notion of the usual statement “Danger! High Voltage!” posted on different voltage sources.

in Millikans oil dropplet experiment How does the direction of the electric charge when the electric field is turned on determine the sign of the charge? Please explain how you can tell