Quiz on Chapter 22

Question 1

An electron moves at right angles to a magnetic field of 0.18T. What is its speed if the force exerted on it is 8.9E-15 N?

Answer 1

Question 2

Find the radius of an electrons orbit whenit moves perpendicular to a magnetic field of 0.66t with a speed of 6.27E5 m/s.

Answer 2

Question 3

Charged particles pass through a velocity selector with electric and magnetic fields at right angles to each other, as shown in the figure. If the electricfield has a magnitudeof 450 N/C and the magnitude field has a magnitude of 0.18T, what speed must the particles have to pass through the selector undeflected?

Answer 3

Question 4

What is the magnetic force exerted on a 2.15m length of wire carrying a current of 0.899A perpendicular to a magnetic field of 0.720T?

Answer 4

Question 5

The maximum current in a superconducting solenoid can be as large as 3,750A. If the number of turns per meter in such a solenoid is 3,650, what is the magnitude of the magnetic field it produces?

Answer 5

Question 6

Two parallel wires, each carrying a current of 2.2A in the same direction, are shown in the figure. Find the direction and magnitude of the net magnetic field at points A, B, and C.

Answer 6