The radius of the path of a charged particle moving perpendicular to a uniform magnetic field is given by r = mv/Bq. What is the time, T, it takes for this particle to complete one loop around its path?
1. Bq/2pm
2. 2pm/Bq
3. Bqr
4. Additional information must be given.
Question 2
Which of the following increases the magnetic moment of a rectangular coil the most?
1.doubling the coil's current and its number of turns
2.doubling the coil's area and doubling the magnetic field in which the loop is placed
3.doubling the magnetic field in which the coil is placed and doubling the angle between the magnetic field and the plane of the loop
4.All of these choices increase the magnetic moment by a factor of 4, thus they are all the most.
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