MAGNETISM MAMBO

Question #1 Two ends of a magnet create the magnetic field shown below. State which end is a north pole state how a compass would point if placed inside the field shown.

Question #1 Two ends of a magnet create the magnetic field shown below. State which end is a north pole state how a compass would point if placed inside the field shown. N S

Question #2 A coil of wire is wrapped around a metal bar, as shown below. Draw the magnetic field around the coil and through the coil. Indicate which end of the metal bar acts as magnetic north.

Question #2

Question #3 Draw the magnetic field lines for the following two situations. A) Current is going down the page B) Current is coming out of the page

Question #3 Draw the magnetic field lines for the following two situations. A) Current is going down the page B) Current is coming out of the page

Question #4 Find the direction of the force each charge experiences due to the magnetic field. B v A) B) C) D)

Question #4 Find the direction of the force each charge experiences due to the magnetic field. B v A) B) C) D)

Question #6 The rod is pulled to the right. Find the direction of the current and explain how you found it. X X X X X X X X X X X

Question #6 As the rod is pulled to the right, the magnetic flux is increasing. To counteract that change, current is going to be induced that creates a magnetic field in the opposite direction of the external magnetic field. Using the right hand rule, the current should flow counter-clockwise. X X X X X X X X X X X

Question #8 Alpha particles of charge q = + 2e and mass m = 6.6 x 10-27 kg are emitted from a radioactive source at a speed of 1.6 x 107 m/s. What magnetic field strength would be required to bend these into a circular path of radius r = 0.25 m?

Question #8 Alpha particles of charge q = + 2e and mass m = 6.6 x 10-27 kg are emitted from a radioactive source at a speed of 1.6 x 107 m/s. What magnetic field strength would be required to bend these into a circular path of radius r = 0.25 m?

Question #9 A square loop of wire with 250 turns is placed in a uniform magnetic field pointing into the page of 0.020 T. Each side has a length of 5.0 cm and the total resistance of the entire wire is 0.35 Ω. The magnetic field is then turned off, taking 0.50 seconds to reach 0 T. Find the magnitude of the induced current. Find the direction of the induced current. X X X X X

Question #9

Question #10 An electron passes between the plates of a parallel plate capacitor with an electric field of 1200 N/C at a speed of 4.0 x 106 m/s. There is a magnetic field such that the electron continues moving through the capacitor with a constant velocity. Ignore the force of gravity. Draw a free body diagram. Find the magnitude and direction of the magnetic field. E = 1200 N/C e- v

Question #10 E = 1200 N/C e- v