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
Correct Answer: Option A
Explanation
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