Determining how Far a Point of Specific Magnetic Field Strength is from a Current-Carrying Wire

A long, straight wire carries a current of 48 A. The magnetic field produced by this current at a certain point is 7.0E-5 T. How far is the point from the wire? Answer in meters.

Solution Summary

This succinct solution uses the relevant formula to find the distance a point of specific magnetic field strength would have to be from the current-carrying wire that produced that field when given the aforementioned strength.

At what distance from a long, straight wire carrying a current of 100.0 A is the magneticfield due to the wire equal to the strength of the Earth's field, approximately 4.0E-5 T (in m)?

Problem 33.42
A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at . A second, parallel wire carrying a 3.0 A current intersects the x-axis at .
Part A
At what point on the x-axis is the magneticfield zero if the two currents are in the same direction?
ANSWER: = Answer not d

1. Two parallel wires, each carrying a current of I = 3.1 A, are shown below, where d = 5.2 cm. The current in wire 1 is in the opposite direction of wire 2. Find the direction and magnitude of the net magneticfield at points A, B, and C.
See attached file for full problem description.
I don't know how to do the problem

"Consider the four current-carryingwires described in the figure below. Each of these wires is long and straight, and carries the current I either into or out of the page, as shown."
What is the direction of the net magneticfield produced by these four wires at the center of the square?
Please see attached for diagram.

A rectangular wire loop with a cross-sectional area of 5,000 cm^2 carries a current of 0.50 amperes. The loop is free to rotate about an axis that is perpendicular to uniform magneticfieldstrength of 0.40 Tesla. The plane of the loop is initially at an angle of 25 degrees to the direction of the magneticfield. What is the ma

A wire 2.80 m in length carries a current of 5.00 A in a region where a uniform magneticfield has a magnitude of 0.390 T. Calculate the magnitude of the magnetic force on the wire assuming the angle between the magneticfield and the current is (a) 60.0, (b) 90.0, (c) 120.

See the attached file.
Three loops of wire are located near a long straight current-carryingwire, as shown in the attachment. Indicate below the direction of the induced current in the specified loop, depending on the action described relating to the current in the wire or the motion of the loops. Please explain your answer.

Consider a straight section of wire of length L which carries a current I, as shown below. Show that the magneticfield at a point P a distance R from the wire along its perpendicular bisector is B = (muI/2piR) * L/(L^2 + 4R^2)^1/2
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: :
: :
L/2 : I :
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A piece of copper wire has a resistance per unit length of 6.45E-3 omega/m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.170 m. The ends of the wire are connected to a 12.0 V battery. Find the magneticfieldstrength at the center of the coil. Answer in T.