o B = 0.20 T o deutron source V = 8.0 x 10 m/'s IVa accelerator grid A mass spectrograph is operated with deuterons, which have a charge of te and a mass of 3.34 x 1072 kg. Deuterons emerge from the source, which is grounded with negligible velocity. The velocity of the deuterons as they pass through the accelerator grid is 8.0 * 105 m/5. A uniform magnetic field of magnitude =0.201, directed out of the plane, is present at the right of the grid. In the figure above, the deuterons are in circular orbit in the magnetic field. What are the radius of the orbit and the initial sense of deflection closest to?2. A transformer consists of 340. primary windings and 980. secondary windings. If the emf of the primary coil is 30.0 V, what is the emf across the secondary coil? 4. A circular coil of 20 turns and radius 5 cm is placed with its plane oriented at 90 to a magnetic field of U. . The field is now increased at a steady rate, reaching a value of 0.5 ! after 4 seconds. What EMF is induced in the coil? 0.036 V 0.016 V 0.031 V 0.021 V 0.026 V6. a R b In the figure, a straight wire carries a current I. The wire passes through the center of a toroidal coil. The current is quickly reduced to zero. The induced current through the resistor R is from a to b from b to a zeroAll changes saved 7. A 2.0-m length of conducting wire is formed into a square and placed in the horizontal *y-plane. A magnetic field is oriented 30 above the horizontal with a strength of 10 1. What is the magnetic flux through the conductor? O 2.0 T . m2 O 0.25 T . m2 O 0.22 T . m2 O 0.12 T . m2In the figure, two parallel wires carry a current I in opposite directions. A rectangular loop is midway between the wires. The current I is decreasing. The induced current through the resistor R is Q from bto a 0 zero 0 from ate b 10. A closed loop conductor with radius - Um is located in a changing magnetic field. If the maximum emf induced in the loop is 2.0 V, what is the maximum rate at which the magnetic field strength is changing if the magnetic field is oriented perpendicular to the plane in which the loop lies? 0.16 T/S 1.0 T/5 2.0 T/S 0.080 T/SX X X X X X 11. B = 0.80 T O- X YO X X X X An electron moves from left to right across the screen at speed vo. Then a uniform magnetic field of strength 0.80 T is directed into the screen. What is the direction of the force on the electron? down the screen O up the screen O out of the screen O into the screen12. Alpha particles [charge = +2e, mass = 5.68 X 102? kg} are accelerated in a cyclotron to a nal orbit radius of 0-501"- The magnetic 0.50 T. eld in the cyclotron is what is the kinetic energy of an alpha particle in the nal crbit closest to? 13. A coil with 500 turns enclosing an area of 10 cm2 is rotated from a position where its planes is perpendicular to earth's magnetic eld to one where its plane is parallel to the eld. The rotation takes 0.050 5. what is the average emf induced in the coil