7 ) Problem 9: A student uses a compass and a current-carrying wire to measure the horizontal component of themagnetic field in the laboratory. (This field includes the magnetic field of the Earth, but it may also be affected bynearby electronic equipment or magnetized materials.) Initially the compass is aligned so that the tip of the red arrowpoints to 0", magnetic north. A wire is aligned north-south at a distance 6.5 cm directly beneath the compass, as shownA current is initiated in the wire, and when it is increased to 7.5 A, the compass needle points to 30°IPart (a) Calculate the magnitude of the magnetic field due to the current in the wire, B1, in micro-tesla, at the location of the compass.Part (b) What is the direction of the current in the wire?Part (c) Excluding the contribution from the current in the wire, what is the magnitude of the magnetic field in the laboratory, Bo. in micro-tesla,near the compass?Part (d) Suppose the current is increased to 1S A Where does the tip of the red needle point now? Enter your answer as an angle, 0, measured indegrees in the range 0"<0 < 360".Grade SummaryDeductions

Given, Distance, r=6.5×10-2m Current, i=7.5A a. The magnetic field due to the current in the wire,…

) Problem 9: A student uses a compass and a current-carrying wire to measure the horizontal component of the magnetic field in the laboratory. (This field includes the magnetic field of the Earth, but it may also be affected by nearby electronic equipment or magnetized materials.) Initially the compass is aligned so that the tip of the red arrow points to 0", magnetic north. A wire is aligned north-south at a distance 6.5 cm directly beneath the compass, as shown A current is initiated in the wire, and when it is increased to 7.5 A, the compass needle points to 30°. Part (a) Calculate the magnitude of the magnetic field due to the current in the wire, Bj, in micro-tesla, at the location of the compass Part (b) What is the direction of the current in the wire? Part (c) Excluding the contribution from the current in the wire, what is the magnitude of the magnetic field in the laboratory, Bo. in micro-te near the compass?

) Problem 9: A student uses a compass and a current-carrying wire to measure the horizontal component of the magnetic field in the laboratory. (This field includes the magnetic field of the Earth, but it may also be affected by nearby electronic equipment or magnetized materials.) Initially the compass is aligned so that the tip of the red arrow points to 0", magnetic north. A wire is aligned north-south at a distance 6.5 cm directly beneath the compass, as shown A current is initiated in the wire, and when it is increased to 7.5 A, the compass needle points to 30°. Part (a) Calculate the magnitude of the magnetic field due to the current in the wire, Bj, in micro-tesla, at the location of the compass Part (b) What is the direction of the current in the wire? Part (c) Excluding the contribution from the current in the wire, what is the magnitude of the magnetic field in the laboratory, Bo. in micro-te near the compass?