
College Physics
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Author: Raymond A. Serway, Chris Vuille
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Transcribed Image Text:A lightning bolt may carry a current of 1.00 x 104 A for a short period of time. What is the resulting magnetic field 97 m from the
bolt? Assume that the bolt extends far above and below the point of observation.
μT
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- A lightning bolt may carry a current of 1.00 × 104 A for a short time. What is the resulting magnetic field 110 m from the bolt? Suppose that the bolt extends far above and below the point of observation. uTarrow_forwardAn electron beam passes through a region between two plates with a poten- a) tial difference giving rise to an electric field of E = 104 Vm-1. External coils give a magnetic field of B = 10-4 T in this region, at right angles to the electric field and to the electron beam. The electron beam is undeflected (follows a straight line) in this region. Calculate the velocity of the electrons.arrow_forwardA 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.arrow_forward
- A metal rod of 2.50m long stands vertically near the earth’s equator carrying a current of10.0A away from the ground. The earth’s magnetic field at the location has a magnitude of 0.500 10 to negative 4th power Tand points directly to the north. (a) what is the smallest angle between the current inthe rod and the magnetic field of Earth at that location? (b) What is the magnitude of the magneticforce on the rod? (c) What is the direction of the magnetic force on the rod?arrow_forwardA wire carrying a current is shaped in the fom of a circular loop of radius 4.0 mm. If the magnetic field strength at its center is 1.1 mT with no external magnetic field contributing to it, what is the magnitude of the current that flows through the wire?arrow_forward
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