Charged particles are traveling in circular orbits with the speed v in a region
ID: 2038454 • Letter: C
Question
Charged particles are traveling in circular orbits with the speed v in a region of uniform magn field that is directed into the page, as shown. xx xx What is the sign of charge q (Positive or 8. Negative)? Two particles of the same charge q enter a region of uniform magnetic field with the same speed, as shown below, that causes the beam to follow a semicircular path. The gyroradii are r and r2 for particle A and B, respectively. Since the force Fs on the particles due to the magnetic field is equal to the centripetal force Fc, radius of the circle can be found. 9. (9a) Find the ratio of the mass between two particles, x yx xx (9b) Which particle has bigger mass (Particle A or Particle B)? A B 10. A coil with 100 circular loops with radius 60cm carries a current of 5,0A. Find the distance x at which magnetic field dropped to 1/10 from the centerExplanation / Answer
By using Right hand rule
curl your fingers of right hand from v to B,then thumb gives the force acting on the particle
in the figure the direction force is the direction of centripetal force
hence
according to this rule the charge is positive
if it is a negative charge ,we will use left hand
answer for 8) is q is positive