Part A The figure shows a bar magnet moving vertically downward, away from a horizontal coil. The poles of the bar magnet are labeled X and Y. As the bar magnet is moving away from the coil it induces an electric current in the direction indicated on the figure (clockwise as viewed from above). What are the correct polarities of the magnet? X Y O X is a south pole, Y is a north pole. O Both X and Y are south poles. O Both X and Y are north poles. X is a north pole, Y is a south pole. O The polarities of the magnet cannot be determined from the information given. Submit Request AnswerPart A A wire has a resistance of 2.75 $2 . What is the resistivity of the wire if the diameter of the wire is 8.0 mm and the length of the wire is 7.0 m ? O 1.97x10-05 0m O 7.89x10-05 02m O 6.10x10-06 0m O 5.10x10-05 02m O 1.97x1001 0m Submit Request AnswerPart A Two insulated wires perpendicular to each other in the same plane carry currents as shown in the figure . Find the magnitude of the net magnetic field these wires produce at point P if the curent I, is 12 A and the current 12= 4.00 A |1 12 8.0 cm 15 cm P O 26 AT 3.0 MT 6.0 AT 600 MT O OUTPart A lons having equal charges but masses of M and 2M are accelerated through the same potential difference and then enter a uniform magnetic field perpendicular to their path. If the heavier ions follow a circular arc of radius R, what is the radius of the arc followed by the lighter ions? O 3R O R/2 O V2R O R/V2 O 4R Submit Request