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3 (a) Awire with a mass of 64 g and I m long floats horizontally in magnetic field. If B- 1.6x 10-2 T is at the direction perpendicular to the wire, current in the wire 12 marks] Me'. : xXxx FIGURE 2 FIGURE 2 shows two particles M and N with charge +e and -e respectively enter a uniform magnetic field B-0.8 T with the same velocity v 1.5 x 10° ms i. Copy FIGURE 2, sketch and label the path of each particle as it enters the region of uniform magnetic field, and ii. Determine the magnitude of magnetic force on each particle. 4 marks An electron moves with constant velocity through an electric field and magnetic field which acts perpendicularly towards each other as shown in FIGURE 3 (c) electron path FIGURE3 Given the magnetic flux density is 0.0076 T and electric field strength is 56000 V m Show the direction of electric force and magnetic force that is exerted on the electron. i. i. Calculate the velocity of the electron. [4 marks]

Answer 1