## Questions 31-32 A magnetic field of 0.1T forces a proton beam of 1.5 mA to move in…
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
## Questions 31-32
A magnetic field of 0.1T forces a proton beam of 1.5 mA to move in a circle of radius 0.1 m . The plane of the circle is perpendicular to the magnetic field.
(A) 0 J
(B) 10−22J
(C) 10−5J
(D) 102J