Two charged particles are projected into a region where there is a magnetic field perpendicular to their velocities. if the charges are deflected in opposite directions, which of the following statements is true of the charge?
A
the charge must be of opposite sign
B
positive charges are more in number
C
the charges are electrically neutral
D
the charges are of the same sign
Verified Correct Answer: A.
Physical Principles & Numerical Solution
The charge must be opposite in sign, since the positive charges will deflect to the negative plate, and the negative charge to the positive plate
Source: Myschool Past Questions Archive (Record #13813)