Questions 18-20 A rectangular conductive loop is placed near a long, straight wire at a distance a carrying an alternating current of I(t) = Io sin(ot). Here, o =2/T, T = 0.02 s is the period of the alternating current. Both the wire and the loop are in the same plane. The side lengths of the loop are L1 = a and L2 = 2a, and the resistance R = 20 is connected between the two open ends of the loop (take ln2 = 0.6 and = 3)

19. What is the voltage, in terms of o, Io and a, between the ends of the resistor at t = T /2? (a) 12aoIo (b) 50aoIo (c) 180aoIo (d) 60aoIo (e) 6aoIo 20. What is the current, in terms of o, Io and a, passing through resistance at t = T /2? (a) aoIo (b) 9aoIo (c) 5aoIo (d) 3aoIo (e) 4aoIo