Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 33, Problem 24SP
To determine
Thetorque of the shunt motor when the flux density in the air gap is
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Chapter 33 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 33 - Prob. 12SPCh. 33 - ELECTRIC GENERATORS
33.13 [II] The emf induced in...Ch. 33 - ELECTRIC GENERATORS
33.14 [II] A dynamo...Ch. 33 - ELECTRIC GENERATORS
33.15 [II] A 75.0-kW, 230-V...Ch. 33 - ELECTRIC GENERATORS
33.16 [III] A 120-V generator...Ch. 33 - ELECTRIC MOTORS
33.17 [II] A generator has an...Ch. 33 - ELECTRIC MOTORS
33.19 [II] A shunt motor with...Ch. 33 - ELECTRIC MOTORS
33.20 [II] A shunt motor is...Ch. 33 - ELECTRIC MOTORS
33.21 [II] A shunt dynamo has an...Ch. 33 - ELECTRIC MOTORS
33.22 [II] A shunt motor has a...
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- Explain why B=0 inside a long, hollow copper pipe that is carrying an electric current parallel to the axis. Is B=0 outside the pipe?arrow_forwardThe density of charge carriers far copper is 8.471028 electrons per cubic meter. What will be the Hall voltage reading from a probe made up of 3cm2cm1cm ( (LWT) ) copper plate when a current of 1.5 A is passed through it in a magnetic field of 2.5 T perpendicular to the 3cm2cm .arrow_forwardIntegrated Concepts One long straight wire is to be held directly above another by repulsion between 1heir currents. The lower wire carries 100 A and the wire 7.50 cm above it is 10gauge (2.588 mm diameter) copper wire. (a) What current must flow in the upper wire, neglecting the Earth’s field? (b) What is the smallest current if the Earth’s 3.00105T field is parallel to the ground and is not neglected? (c) Is the supported wire in a stable or unstable equilibrium if displaced vertically? If displaced horizontally?arrow_forward
- (a) What is the maximum torque on a 150-tum square loop of wire 13.0 cm oil a side that carries a 50.0-A current in a 1.60-T field? (b) Wliat is the torque when d is 10.9s?arrow_forwardA superconducting wire of diameter 0.25 cm carries a current of 1000 A. What is the magnetic field just outside the wire?arrow_forward(a) What is the speed of a supersonic aircraft with a 17.0-m wingspan, if it experiences a 1.60V Hall voltage between its wing lips when in level flight over the north magnetic pole, where the Earth's field strength is 8.00105T ? (b) Explain why very little current flows as a result of this Hall voltage.arrow_forward
- A proton having an initial velocity of 20.0iMm/s enters a uniform magnetic field of magnitude 0.300 T with a direction perpendicular to the protons velocity. It leaves the field-filled region with velocity 20.0jMm/s. Determine (a) the direction of the magnetic field. (b) the radius of curvature of the protons path while in the field, (c) the distance the proton traveled in the field, and (d) the time interval during which the proton is in the field.arrow_forwardA flip coil is a relatively simple device used to measure a magnetic field, It consists of a circular coil of N turns wound with fine conducting wire. The coil is attached to a ballistic galvanometer, a device that measures the total charge that passes through it. The coil is placed in a magnetic field B such that its face is perpendicular to the field. It is then flipped through 180°, and tire total charge Q that flows through the galvanometer is measured. (a) If the total resistance of tire coil and galvanometer Is R, what is the relationship between B and Q? Because the coil is very small, you can assume that Bis uniform over it. (b) How can you determine whether or not tire magnetic field is perpendicular to the face of the coil?arrow_forwardA hypothetical current flowing in the z-direction creates the field B=C[(x/y2)i+(1/y)j] in the rectangular region of the xy-plane shown in the accompanying figure. Use Ampere’s law to find the current through the rectangle.arrow_forward
- A hollow copper tube carries a current along its length. Why is B = 0 inside the tube? Is B nonzero outside the tube?arrow_forwardUnreasonable results Frustrated by the small Hall voltage obtained in blood flow measurements, a medical physicist decides to increase the applied magnetic field strength to get a 0.500-V output for blood moving at 30.0 cm/s in a 1.50-cm-diameter vessel. (a) What magnetic field strength is needed? (b) What is unreasonable about this result? (C) Which premise is responsible?arrow_forward(a) What is me maximum torque on a 150Turn square loop of wire 18.0 cm on a side that carries a 50.0-A current in a 1.60T field? (b) What is the torque when (is 10.9°?arrow_forward
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