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Unformatted text preview: 3 cm 2.5 A 2.5 A 5 cm 10 cm PHYSICS 6B Ch.20 Worksheet clas.ucsb.edu/staff/vince/ 5) A single circular loop of radius 0.23m carries a current of 2.6A in a magnetic field of 0.95T. What is the maximum torque exerted on the loop? 6) In the previous problem, find the angle the plane of the loop must make with the field if the torque is to be half of its maximum value? 7) A metal rod of length 20cm and mass 100g is free to slide over two parallel, horizontal metallic rails connected to a 10V battery. The battery has internal resistance of 0.1 and the rails have negligible resistance. A 2-Tesla magnetic field is directed perpendicular to the plane of the circuit. a) Find the magnetic force on the rod. b) Find the rods speed after it has moved 30cm, assuming no friction. 10V...
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