A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r = 0.28 m. The normal to the plane of the loop is parallel to a constant magnetic field (p = 0°) of magnitude 0.82 T. What is the change AO in the magnetic flux that passes through the loop when, starting with the position shown in the drawing, the semicircle is rotated through half a revolution? B (into paper) ΔΦ = i I

At a particular point on Earth, the magnitude of the Earth's magnetic field is 2.50 x 10-5 T. At this point, the field through a small square loop is essentially uniform. The area of the loop is 30.0 cm². What is the magnitude of the magnetic flux (in T. m²) through the loop when the loop is at the following orientations? (a) the magnetic field is perpendicular to the plane of the loop T.m² (b) the magnetic field and the normal to the plane of the loop are at a 22.0° angle T.m² (c) the magnetic field and the normal to the plane of the loop are at a 90.0° angle T.m²

A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r = 0.16 m. The normal to the plane of the loop is parallel to a constant magnetic field (p=0") of magnitude 0.74 T. What is the change AO in the magnetic flux that passes through the loop when, starting with the position shown in the drawing, the semicircle is rotated through half a revolution? B (into paper) AD= Y i 0.0296 Wb V

A current of 20.0 mA is maintained in a single circular loop of 2.20 m circumference. A magnetic field of 0.410 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. If you know the circumference of a circle, how do you find the area? mA. m² (b) What is the magnitude of the torque exerted by the magnetic field on the loop? A magnetic dipole will tend to orient so that the plane of the loop is perpendicular to the magnetic field. mn. m

A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r = 0.12 m. The normal to the plane of the loop is parallel to a constant magnetic field (p = 0°) of magnitude 0.73 T. What is the change AO in the magnetic flux that passes through the loop when, starting with the position shown in the drawing, the semicircle is rotated through half a revolution? B (into paper) ΔΦ =

A square coil of wire carries a current of 3.11 A. The coil has 340 turns and has a side length of 0.71 m. If the coil is placed in a magnetic field and the maximum torque the field can apply to the coil is 1.23E+03 N*m, what is the strength of the magnetic field? (Answer in T).

A uniform magnetic field passes through a horizontal circular wire loop at an angle 19.5° from the normal to the plane of the loop. The magnitude of the magnetic field is 4.75 T, and the radius of the wire loop is 0.240 m. Find the magnetic flux through the loop. $= Wb

A rectangular surface of length 3.25 cm and width 5.25 cm lies on the y-z plane at x=0. What is the flux through this surface due to a uniform magnetic field of 0.65 T directed 60 degrees from the +x-axis?

A loop of a wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r = 0.18 m. The normal to the plane of the loop is parallel to a constant magnetic field of magnitude 0.86 T. What is the magnitude of the change in the magnetic flux that passes through the loop when, starting with the position shown in the drawing, the semicircle is rotated through half a revolution?

The uniform 30 mT magnetic field in figure points in the positive z-direction. An electron enters the region of magnetic field with a speed of 3.0 x 106 m/s and at an angle of = 30° above the ry-plane. Find the radius r and the pitch p of the electron's spiral trajectory. z 4 V