A particle with a charge of +/-q= C enters a region of magnetic field as shown here, with a speed of
v= m/s.
The B-field has a strength of B= Tesla. When the particle enters the B-field region, it is seen to
sweep out a semi-circle, and hit the edge of the device a distance x= cm to the right of where it
entered.
- Is the charge positive or negative?
- What is the mass of the charge?