Lab Manual PHY-1570 (College Physics II) Summer 2023 Questions 1. Consider a magnetic field pointing due East. In this field is a current carrying wire with the direction of the current being due North. (a) What is the direction of the Magnetic Force on this wire? (b) If the current is reversed what is the new direction of the Magnetic Force? 2. Two straight wires are in parallel and carry electric currents in opposite directions and with the same magnitude of 2.0 A. The distance between the two wires is 5.0 mm. One wire is infinitively long, and the other wire is 0.30 m long. Is the magnetic force between the two wires repulsive or attractive? What is the magnitude of the magnetic force between them? a) I= 2.0A Force on 2 due to 1 = B IL P (11 [1-(0.3) B = o I = MI'L 214 B3) F=mg 4.810-5 = m19.8) = 40 (2)2 103) 2TM (510-3) m = 4.897 x 10-6 ka ky 214 = (210-7/4 5x10-3 = 4.8x10-5 N Opposite repulsive 3. What mass on the Earth surface will experience a gravitational force with the same magnitude as the above magnetic force in problem 2? 5