HomeworkAssignment(11-12)-02-14-08 - Lehigh University...

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Figure 29-35 Figure 29-38 Lehigh University February 14, 2008 Physics 21, Spring 2008 Home Work Assignment (11-12) Note: Solutions to the problems must be submitted on WileyPLUS ( ). HW-11 due February 19 11-1. (HRW 28-43 ) A wire 50.0 cm long carries a 0.500 A current in the positive direction of an x axis through a magnetic field . In unit-vector notation, what is the magnetic force on the wire? 11-2. (HRW 28-51) The coil of a certain galvanometer (see Sample Problem 28-7 ) has a resistance of ; its needle shows a full-scale deflection when a current of 1.62 mA passes through the coil. (a) Determine the value of the auxiliary resistance required to convert the galvanometer to a voltmeter that reads 1.00 V at full-scale deflection. (b) Should this resistance be connected in series or in parallel with the galvanometer? (c) Determine the value of the auxiliary resistance required to convert the galvanometer to an ammeter that reads 50.0 mA at full-scale deflection.
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  • Spring '08
  • Kim
  • Work, Magnetic Field, HRW

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