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The figure below shows the arrangement you used to study forces between current-carrying wires. This balance, however, had a resolution of 0.001 g. The student

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The figure below shows the arrangement you used to study forces between current-carrying wires. This balance, however, had a resolution of 0.001 g. The student forgot to set the balance to 0.000 g with the balance coil in place, so the reading on the electronic balance was +210.250 g with no current in either coil. The current is then set to 0.600 A in each coil and the balance reading changes to a value of +210.575 g. The direction of the current in the top coil is from D to B. Label the current in the top coil IT and the current in the balance coil as I. The distance between the segments CD and EF is r. The constant of proportionality, k, contains information on the length of the current-carrying wire. Please use g = 9.800 m/s2. A B Top Coil D F Balance Coil G H Balance Pan D 1. (2 pts) The direction of the current in the balance coil is from X ( A) H to G (B) G to E (C) G to H (D) E to F (E) None of the other offered answers.2. (2 pis) The magnitude of the force between the top coil and the balance coil is given by (A) 0.003185 N (B) None of the other offered answers. (C) 0.003250 N (D) 3.185 N (E) 0.3250 N 3. (3 pts) The direction of the magnetic field that a current from C to A produces at the segment BD is (A) toward the left. (B) toward the right. (C) None of the other offered answers. (D) toward the top of the page. (E) out of the page. _4. (3 pts) The current in the top coil is reversed and changed to 0.900 A. The new balance reading to 6 significant figures is given by F = KLIK (A) +210.088 g B)+210.738 g (C) +211.063 g r (D) None of the other offered answers. (E) +209.763 g C 5. (2 pts) Continuing from question 4. The direction of the current in the balance coil is from ( A ) G to E (B) G to H CDE to F (D) None of the other offered answers. (E) H to G 6. (3 pts) Continuing from questions 4 and 5. The direction of the force that the top coil exerts X on the balance coil is (A)None of the other offered answers. (B) toward the top of the page. (C) to the right. (D) out of the page. (E) to the left. 3 7. (2 pts) The top coil is removed and replaced by a bar magnet with its South Pole pointing straight down toward the bottom of the page. If the current in the balance coil is from F to H, the force the bar magnet exerts on the segment EF is (A) to the right. ((B) None of the other offered answers. (C) into the page. (D) out of the page. (E) to the left. 8. (3 pts) Continuing from question 7. If the bar magnet were oriented so that it produced a force toward the right on the segment EF, the magnetic field would point (A) to the left. (B) toward the bottom of the page. (C) into the page. (D) out of the page. (E) None of the other offered answers

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