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23 Nov 2019
1) A single circular loop of wire of radius 0.75m carries aconstant current of 3.0A. The loop may be rotated about an axisthat passes through the center and lies in the plane of the loop.When the orientation of the normal to the loop with respect to thedirection of the magnetic field is 25 degrees, the torque on thecoil is 1.8 N.m. What is the magnitude of the uniform magneticfield exerting this torque on the loop? 2) The Earths magnetic field passes through a square tabletopwith a magnitude of 4.95x10^-5 T and is directed at an angle of 165degrees relative to the normal of the tabletop. If the tabletop has1.50 m sides, what is the magnitude of the magnetic flux throughit? 3) An overhead electric power line carries a maximum currentof 125 A. What is the magnitude of the maximum magnetic field at apoint 4.50 m directly below the power line?
1) A single circular loop of wire of radius 0.75m carries aconstant current of 3.0A. The loop may be rotated about an axisthat passes through the center and lies in the plane of the loop.When the orientation of the normal to the loop with respect to thedirection of the magnetic field is 25 degrees, the torque on thecoil is 1.8 N.m. What is the magnitude of the uniform magneticfield exerting this torque on the loop?
2) The Earths magnetic field passes through a square tabletopwith a magnitude of 4.95x10^-5 T and is directed at an angle of 165degrees relative to the normal of the tabletop. If the tabletop has1.50 m sides, what is the magnitude of the magnetic flux throughit?
3) An overhead electric power line carries a maximum currentof 125 A. What is the magnitude of the maximum magnetic field at apoint 4.50 m directly below the power line?
Elin HesselLv2
6 Feb 2019
