College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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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_forwardPlease answer in absolute tolerance given.arrow_forwardIn the figure below, both currents in the infinitely long wires are 9.20 A in the negative x-direction. The wires are separated by the distance 2a = 4.90 cm. (a) Sketch the magnetic field pattern in the yz-plane. (Submit a file with a maximum size of 1 MB.) Choose File No file chosen This answer has not been graded yet. (b) What is the value of the magnetic field (in HT) at the origin? magnitude B = UT direction -Select-- (c) What is the value of the magnetic field (in HT) at (y = 0, z → o)? magnitude B = PT direction ---Select-- (d) Find the magnetic field at points along the positive z-axis as a function of z. (Assume B is in teslas and z is in meters. Use the following as necessary: z. Do not include units in your answer.) magnitude B = direction |---Select- (e) At what distance d (in cm) along the positive z-axis is the magnetic field a maximum? cm (f) What is this maximum value of the magnetic field (in PT)? magnitude B = UT direction ---Select--arrow_forward
- An 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_forwardFor a research project, a student needs a solenoid that produces an interior magnetic field of 0.0400 T. She decides to use a current of 1.00 A and a wire 0.500 mm in diameter. She winds the solenoid in layers on an insulating form 1.00 cm in diameter and 18.0 cm long. Determine the number of layers of wire needed. (Round your answer up to the nearest integer.) layers Determine the total length of the wire. (Use the integer number of layers and the average layer diameter.)arrow_forwardA uniform current density of 2,450,000 A/m^2 exists in a 5.00 mm radius wire. a) Calculate the magnetic field strength inside the wire at a radius of 3.00 mm.arrow_forward
- A square – shaped wire loop that is 3.0 cm long and 2.0 cm wide rests in a uniform 1.45 T magnetic field. The angle between the field lines and the surface of the area of the wire loop is 60ᵒ. Find the magnetic flux.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_forwardWhat is the strength of the magnetic field at the center of a circular loop of wire of diameter 5.88 cm when a current of 3.48 A flows in the wire? (μ0 = 4π × 10-7 T ∙ m/A) (Use π = 3.14). Express answers in milliTeslas.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_forwardFour long, paralel conductors carry equal currents of 2-4.50 A. The figure shown below is an end view of the conductors. The direction of the current is into the page at points A and B (indicated by the crosses) and out of the pape at C and D (indicated by the dots). Calculate the magnitude and direction of the magnetic field at point P, located at the center of the square with edge of length 0.200 m. magnitude direction Sted- C 0,200 marrow_forward
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