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In the figure below, both currents in the infinitely long wires are 6.75 A in the negative x direction. The wires are separated by the distance 2a = 7.75 cm. (a) Sketch the magnetic field pattern in the yz plane. Choose file No file chosen This answer has not been graded yet. (b) What is the value of the magnetic field at the origin? magnitude MT direction ---Select--- (c) What is the value of the magnetic field at the (y = 0, z -> co)? magnitude MT direction ---Select--- (d) Find the magnetic field at points along the positive z axis as a function of z. (Assume B is in teslas and z is in metres. Use the following variable as necessary: z. Do not include units.) magnitude B(z) = direction ---Select--- (e) At what distance d along the positive z axis is the magnetic field a maximum? cm (f) What is this maximum value? magnitude MT direction ---Select--- vA certain superconducting magnet, built to be used as a mass separator in nuclear physics experiments is shown in the figure below. It is in the form of a solenoid of length 0.500 m and can generate a magnetic field of 9.35 T in its core when its coils carry a current of 75.1 A. Find the number of turns in the solenoid. turns Courtesy of The Australian National UniversitySuppose you install a compass on the centre of a car's dashboard. (a) Assuming the dashboard is made mostly of plastic, compute an order-ofmagnitude estimate for the magnetic field at this location produced by the current when you switch on the car's headlights. (Suppose you have two 110-W headlights running in series from a 12-V battery with all the current going through the switch 55 cm from the compass. Model the current as being from a long straight wire.) 0 10-1 T O 10-3 T O 10-6 T O 109 T O 10-12 T (b) How does this estimate compare with the Earth's magnetic field