A hula hoop with diameter 1.28 meters is lying horizontally on the grass in LVC's academic quad. Find the magnetic flux of the Earth's magnetic field through the hula hoop. Consider down to be positive, and answer in units of Wb.

Let x=0 be the beginning of the magnetic field.  Express the area (A), and express vw in terms of the area.  Then what is vBw in terms of magnetic flux? The magnetic force on the conducting charges is an EMF, an electromotive force.  Use these to derive the following expression for the EMF:   Please see attachments for details on question and diagram.

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A segment of wire of total length 5.01 m carries a 17-A current and is formed into a semicircle. Determine the magnitude of the magnetic field (in µT) at the center of the circle along which the wire is placed. - НТ

Calculate the potential difference between the wingtips of an aircraft with the wingspan of 64 m travelling at 710 km.h -¹ at 45 degrees to the magnetic field lines of the Earth with B = 50 µT. Give your answer in Sl units.

A toroid with a square cross-section has an inner radius of 20 cm and an outer radius of 30 cm and consists of 800 turns. Determine the ratio of the magnetic field strength at the  inner radius to the magnetic field strength at the outer radius Binner/Bouter.

Four long, parallel conductors carry equal currents of I= 8.80 A. The figure below is an end view of the conductors. The current direction is into the page at points A and B and out of the page at C and D. A B(x (a) Calculate the magnitude of the magnetic field at point P, located at the center of the square of edge length = 0.200 m. HT O to the right ● upward O downward O into the page O out of the page (b) Determine the direction of the magnetic field at point P, located at the center of the square of edge length = 0.200 m. O to the left magnitude direction с (c) What If? What would be the magnitude and direction of the initial acceleration of an electron moving with velocity 3.63 x 105 m/s into the page at point P? m/s² Need Help? D ---Select--- Read It Master It