Please answer all the attached following questions.

1. An automobile's battery delivers a steady DC current to a headlight. The electric current in the wire produces a circular A. electric field around the wire B. magnetic field around the wire C. gravitational field around the wire D. electromagnetic field around the wire. 2. An alpha particle and a proton enter a magnetic field at the same speed. The radius of the alpha particle's path is A. half the radius of the proton's path B. the same as the radius of the proton's path C. twice the radius of the proton's path D. four times the radius of the proton's path Use the following information to answer the next question. Direction of external magnetic field Direction of magnetic deflecting force 3. The direction of the initial negative charge motion, in the situation shown in the diagram is A. out of the page B. into the page C. to the right D. to the leftName: TOTAL = /18 Name: TOTAL = /18 Use the following information to answer the next question. 6. A magnetic domain can best be described as a region Note: Use the thin end of the compass needle to tell which way the compass is pointing. A. surrounding a current carrying wire B. within a ferromagnetic material in which the magnetic fields of most atoms are Magnetic Field Surrounding a Current in a Wire aligned C. within a ferromagnetic material in which the magnetic fields of all the electron motions are random D. in the space, surrounding a magnet, which can exert a magnetic force on a ferromagnetic material Use the following information to answer the next question. A Current-Carrying Wire in an External Magnetic Field 4. The compass that correctly indicates the direction of the magnetic field produced by a wire conducting electrons is numbered A. 1 B. 2 C. 3 D. 4 5. The path following by a moving proton in an external magnetic field is shown in: 7. The part of the wire in the magnetic field is 10.0cm long and carries a current of A. B. vertically down 10.0A. If the strength of the magnetic field is 0.050T, then the resulting force on vertically up the wire is A. 0.050N out of the page B. 5.0 N out of the page N. S N S C. 0.050 N into the page D. 5.0 N into the page C. D. horizontally right horizontally left 8. An electron moving perpendicularly through a magnetic field of magnitude 5.0T experiences a deflecting force of 4.0 X 10"N. The speed of this electron is A. 5.0 X 105 m/s N S B. 5.8 X 105 m/S C. 1.3 X 10' m/s D. 2.5 X 10' m/s/18 Name: TOTAL = Name: TOTAL = /18 Use the following information to answer the next TWO questions. 11. A beam of electrons travels undeflected through crossed electric and magnetic A cyclotron uses a magnetic field to move charged particles in a circular path. fields as shown in the diagram. It also uses a high frequency power supply to repeatedly accelerate the particles. . Determine the magnitude and direction of the magnetic field needed to allow the electrons to pass undeflected through the fields. [2 marks] S Ion source 0.15 m - 3.0 x 10' V 5.5 x 105 m/s Proton beam B =? High-frequency power supply Ernest Lawrence was the first person to use a cyclotron. His cyclotron accelerated protons to a maximum energy of 8.0 x 10* eV. With this energy, the protons moved in a circular path with a radius of 6.5 x 10 2 m. The maximum speed of the protons in Lawrence's cyclotron was A. 1.5 X 1013m/S B. 1.7 X 108m/s C. 3.9 X 10m/S D. 9.8 X 1015m/s 12. Use the picture provided to answer the following questions. a. When the bar magnet gets closer to the suspended aluminum ring, a current is induced and the ring is repelled. Explain why. [1 mark] 10. The magnitude of the magnetic field used by Lawrence was A. 6.3X10 'T B. 2.7X10'T b. Explain what will happen when the magnet is moved away from the ring. [1 C. 2.4X10'T D. 1.6X109T mark] c. What physics principle is responsible for this interaction? Explain. [2 marks]Name: . TOTAL = /18 13. Determine (and label) the polarity of the battery that must be inserted to create the magnetic field lines shown on the electromagnet. Explain your reasoning. (2 marks]