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e II H) U.S. 81% Thu 10:49 PM a Chrome File Edit View History Bookmarks People Window Help Mastering Physics: Homework #8 (Chapter 24 https:// session masteringphysics.com/ myct/itemView? assignment ProblemID 48089127 PHY 172/174 Spring 2015 He Close Homework #8 (Chapter 24 Problem 24.37 previous l 8 of 15 l next If a voltage of 5.0 Vis applied to the coil, what is the current? Problem 24.37 Express your answer to two significant figures and include the appropriate units Magnetic information on hard drives is accessed by a read head that must move rapidly back and forth across the disk. The force to move the head is generally created with a voice coil actuator, a flat coil of fine wire that moves between the poles of a strong magnet, as in the Value Units figure. Assume that the coil is a square 1.0 cm on a side made of 220 turns of fine wire with total resistance 1.30 The field between the poles of the magnet is 0.30T; Subm My Answers Give U assume that the field does not extend beyond the edge of the magnet. The coil and the mount that it rides on Part B If the current is clockwise viewed from above, what is the direction of the net force on the coil? Directed up in the "Top view" figure Directed down in the "Top view" figure. Directed to the left in the "Top view" figure Directed to the right in the "Top view" figure. Subm My Answers Give U Side view Top view Part C What is the magnitude of the net force on the coil? cant figures and include the appropriate units. Express your answer to two signExplanation / Answer
A) total voltage = 5 volts
resistance = 1.3 ohm
current = voltage / resistance = 5 / 1.3 = 3.85 A
B)
force is directed left in the top view using right hand rule
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