A long pair of insulated wires serves to conduct 33.0 A of dc current to and from an instrument. If the wires are of negligible diameter but are 2.8 mm apart, what is the magnetic field 10.0 cm from their midpoint, in their plane (see the figure(Eigure 1))? Express your answer using two significant figures. ? Buet = T Submit Request Answer Part B Figure < 1 of 1> Compare to the magnetic field of the Earth (5.0 × 10¬5 T). Express your answer using two significant figures. ? 10.0 cm Buet /BEarth= Submit Request Answer 2.8 mm

A long pair of insulated wires serves to conduct 33.0 A of dc current to and from an instrument. If the wires are of negligible diameter but are 2.8 mm apart, what is the magnetic field 10.0 cm from their midpoint, in their plane (see the figure(Eigure 1))? Express your answer using two significant figures. ? Buet = T Submit Request Answer Part B Figure < 1 of 1> Compare to the magnetic field of the Earth (5.0 × 10¬5 T). Express your answer using two significant figures. ? 10.0 cm Buet /BEarth= Submit Request Answer 2.8 mm

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 11STP

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Criterion A: Knowing and understanding i. state scientific knowledge. (Max. 2 points) A wire loop is moved from outside the magnetic field until it is fully inside the magnetic field. The initial magnetic flux is 0 Wb, and the change in magnetic flux is 2.5 Wb. The magnetic field has a strength of 0.031 T. Calculate the area of the wire loop. The following equations may be useful: AP = D = BLA Round your answer to 3 significant figures. BA 2.5 Wb A 0.031 T A = m² || ||
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If the magnetic field at the center of a single loop wire with a radius of 2.4cm is 0.014T, calculate the magnetic field if the radius would be 6.8cm with the same current. Express your result in units of T with 3 decimals.
A metal cube with sides of length a is moving at velocity v=voj across a uniform magnetic field B = Bok. The cube is oriented so that four of its edges are parallel to its direction of motion (i.e., the normal vector of two faces are parallel to the direction of motion). (Figure 1) Figure Bo N 1 of 1 Vo Part A Find E, the electric field inside the cube. Express the electric field in terms of vo, Bo, and unit vectors (i, j, and/or k). E = Submit Part B V ΑΣΦ -î Request Answer Now, instead of electrons, suppose that the free charges have positive charge q. Examples include "holes" in semiconductors and positive ions in liquids, each of which act as "conductors" for their free charges. www. J? If one replaces the conducting cube with one that has positive charge carriers, in what direction does the induced electric field point? Submit Request Answer
A long pair of insulated wires serves to conduct 23.0 A of dc current to and from an instrument. If the wires are of negligible diameter but are 2.8 mm apart, what is the magnetic field 10.0 cm from their midpoint, in their plane (Figure 1)? Express your answer using two significant figures. Compare to the magnetic field of the Earth of 5.0×10−5T. Express your answer using two significant figures.
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