Question 8 A copper wire is connected to a battery so that it has a current in it. A segment of the wire is perpendicular to a Not yet horizontal 1.5 T magnetic field. The length of the wire in the magnetic field is 3.0 cm, and the mass of the wire affected answered by the magnetic field is 20 g. In order to suspend the segment of wire, the minimum current in the wire must be Marked out of 1.00 Select one: Flag question O a. 0.044 A O b. 0.23 A O c. 4.4 A O d. 44 Aques'i'm 9 Use the following information to answer the next question. Not yet answered A student used the apparatus shown below to measure the radius of curvature of the path of electrons as they pass M _ d f through a magnetic field that is perpendicular to their path. This experimental design has the voltage as the t _ . . . . am DU 0 manipulated variable, the speed calculated from the voltage, and the radius as the responding variable. 1.00 '3." Flag question Acceleratmg Potentlal Dime (V) Speed {106 111's) Radlus {10" m) 20.0 2.65 T2 40.0 3.1'5 9.1 60.0 4.59 11.0 80.0 5.30 12.3 100.0 5.93 14.1 120.0 6.49 16.3 111111! voltag- lib-more . ' . . . -I-. 500.1% '5". '\\ a l. '4 Mailman i I x\" indicates magnetic eld into the page First, plot a graph of radius as a function of speed, and construct a bestfit line. You may do this either electronically or on your graphing calculator. The slope ofthis graph is i. Please be careful about entering scientific notation! Using the slope of the above graph. the strength of the magnetic field isi T. Please do not enter your answer in scientific notation. Enter it in proper notation. For example. if your answer is 7.42 x 10'5, enter it as 0.0000742. Question 1 9 hot yet answered hale-"iced out of 1.03 "-' F-ag question Use the following information to answer the next question: about the axis KY. coil \\ Y pole of magnet pole of magnet N S X the coil. The diagram below shows a coil of wire that can rotate between the poles of a magnet A current is passed through the coil by means of a commutator connected to the ends of Time left 1 :57145 What is the position ofthe coil in the magnetic field so that its turning effect is a maximum and what is the position of the coil when the current is reversed so that the coil rotates continuously? plane of coil for maximum turning e'ect plane of coil for reversal of current A. parallel to direction of eld parallel to direction of eld B. normal to direction of eld parallel to direction of eld C. parallel to direction of eld normal to direction of field D. normal to direction of field Select one: Q a. Row A C- b. Row B C) c. Row C C} cl. Row D