The discussion revolves around calculating the energy required for protons to orbit the Earth using a cyclotron that utilizes the Earth's magnetic field. The problem involves understanding the relationship between magnetic forces, centripetal forces, and energy in the context of particle motion in a magnetic field.
Participants are actively engaging with the problem, raising questions about unit consistency and the assumptions made in the calculations. Some guidance is offered regarding the need to consider gravitational forces in the context of centripetal acceleration, indicating a productive exploration of the topic.
There is mention of a sample test from a teacher that lacks unit clarity, leading to confusion among participants regarding the expected format of the answer. Additionally, the absence of the Earth's mass in the original question is noted as a potential oversight.
The answer is 1.56 x 10^13You plan to build a large, cheap cyclotron using the Earth's magnetic fields(1x10^-4 T) and orbiting just above the Earth's atmosphere (radius 5.7 x10 ^6 m) What energy, in volts, should protons be given to just circle the earth? q= 1.6 x10^-19 C, m= 1.67x10^-27
arunbg said:You probably also have to take into account the role of gravitational force in providing centripetal acceleration apart from magnetic force field.