Question
A 4 kg particle carrying a charge of 82 uC enters a uniform 4 T magnetic field at a speed of 78 m/s and with an angle of 20o with respect to the field lines, as shown in the figure. Answer the following questions: (Select T-True, F-False, If the first is T and the rest F, enter TFFFF).
A) The x-component of the particle's velocity is unchanged as it passes through the B-Field.
B) The initial force on the particle is in the -z direction.
C) The particle's speed varies as it passes through the B-Field.
D) The path of the particle is a closed circle since the force is normal to the velocity.
E) The field does a finite (non-zero) amount of work on the particle as the particle's trajectory is bent by the field.
A 4 kg particle carrying a charge of 82 uC enters a uniform 4 T magnetic field at a speed of 78 m/s and with an angle of 20 degree with respect to the field lines, as shown in the figure. Answer the following questions: (Select T-True, F-False, If the first is T and the rest F, enter TFFFF). (There are no other sources of fields besides these two wires) GIVEN THE NUMERICAL DATA ABOVE, consider the statments below. (Select T-True, F-False, If the first is T and the rest F, enter TFFFF). A) At the origin, the B-field points in the +y direction B) The B-field will be zero at some point on the x-axis a finite distance to the left of the leftmost wire C) The two wires attract one another. D) The B-field could be zero at some point on the x-axis a finite distance to the right of the rightmost wire E) The B-field could be zero at some point on the x-axis in between the two wires A) The x-component of the particle's velocity is unchanged as it passes through the B-Field. B) The initial force on the particle is in the -z direction. C) The particle's speed varies as it passes through the B-Field. D) The path of the particle is a closed circle since the force is normal to the velocity. E) The field does a finite (non-zero) amount of work on the particle as the particle's trajectory is bent by the field. Two parallel conducting wires sit along the direction of the z axis as shown below. Wire 1 crosses the x-axis at x = -2 cm and carries a current of 4 A out of the xy-plane of the page. Wire 2 (right) crosses the x axis at x = 2 cm and carries a current of 7 A into the xy plane.
Explanation / Answer
1. TTTFT
2. TTFFF