Shaalaa.com | Moving Charge and Magnetism part 13 (Cyclotron)
Series 1: playing of 3
In a cyclotron, the magnetic field of 1.4 Wb/m2 is used. To accelerate protons, how rapidly should the electric field between the Dees be reversed? (Π = 3.142,Mp = 1.67 x 10-27 kg, e = 1.6 x 10-19 C)
A cyclotron is used to accelerate protons to a kinetic energy of 5 MeV. If the strength of magnetic field in the cyclotron is 2T, find the radius and the frequency needed for the applied alternating voltage of the cyclotron. (Given : Velocity of proton= `3xx10^7 m//s`)
If a watch-glass containing a small quantity of water is placed on two dissimilar magnetic poles, then water ______.
(A) shows a depression in the middle.
(B) shows an elevation in the middle.
(C) surface remains horizontal.
(D) evaporates immediately.
If a charged particle kept at rest experiences an electromagnetic force,
(a) there must be an electric field
(b) there must be a magnetic field
(c) both fields cannot be zero
(d) both fields can be non-zero
Which one of the following particles cannot be accelerated by a cyclotron?
(D) α- particles
In a cyclotron, magnetic field of 3·5Wb/m2 is used to accelerate protons. What should be the time interval in which the electric field between the Dees be reversed?
(Mass of proton = 1· 67 x 10-27Kg, Charge on proton =1·6x10-19c).