A straight wire of length 2.4 m, and mass 146 g, carries a current I in a region where the magnitude field is directed horizontal from left to right. The wire lies perpendicular to the direction of the magnetic field and the current direction is out of the screen/paper. If the magnitude of the magnetic field is 0.34 T, what is the minimum value of the magnitude of the current I (in A) in this wire so that its weight is completely supported by the magnetic force due to the magnetic field it is in. Assume that no other forces except gravity act on it? State your answer correct to 1 decimal point. Use a period (full stop) for the decimal point. Do not include units in your answer.

A straight wire of length 2.4 m, and mass 146 g, carries a current I in a region where the magnitude field is directed horizontal from left to right. The wire lies perpendicular to the direction of the magnetic field and the current direction is out of the screen/paper. If the magnitude of the magnetic field is 0.34 T, what is the minimum value of the magnitude of the current I (in A) in this wire so that its weight is completely supported by the magnetic force due to the magnetic field it is in. Assume that no other forces except gravity act on it? State your answer correct to 1 decimal point. Use a period (full stop) for the decimal point. Do not include units in your answer.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Magnetic Forces And Magnetic Fields

Section: Chapter Questions

Problem 22P

See similar textbooks

Similar questions

A proton travels with a speed of 3.00 106 m/s at an angle of 37.0 with the direction of a magnetic field of 0.300 T in the +y direction. What are (a) the magnitude of the magnetic force on the proton and (b) its acceleration?
Two long wires, one of which has a semicircular tend of radius R, are positioned as shown in the accompanying figure. If both wires carry a current I, how far apart must then parallel sections be so that the net magnetic field at P is zero? Does the current in the straight wire flow up or down?
A wire ismade into a circular shape of radius R and pivoted along a central support.The two ends of the sire are touching a banish that is connected to a &power source. The stricture is between the poles of a magnet such that we can assume there is a uniform magnetic field on the wire. In terms of a coordinate system with origin at the center ofthe ring, magneticfieldisBx=B0,By=Bz= 0. and the ring rotates about the z-axis. Find the torque on the ring siren it is not in the xz-plane.
Calculate the magnitude of the magnetic field at a point 25.0 cm from a long, thin conductor carrying a current of 2.00 A.
12.4 Check Your Understanding Two wires, both carrying current out of the page, have a current of magnitude 2.0 mA and 3.0 mA, respectively. The first wire is located at (0.0 cm, 5.0 cm) while the other wire is located at (12.0 cm, 0.0 cm). What is the magnitude of the magnetic force per unit length of the first wire on the second and the second wire on the first?
When the current through a circular loop is 6.0 A, the magnetic field at its center is 2.0104 T. What is the radius of the loop?
A long, solid, cylindrical conductor of radius 3.0 cm carries a current of 50 A distributed uniformly over its cross-section. Plot the magnetic field as a function of the radial distance r from the center of the conductor.
Consider the wires described in Problem 63. Find the magnetic force per unit length exerted on wire B.
Consider an electron rotating in a circular orbit of radius r. Show that the magnitudes of the magnetic dipole moment and the angular momentum L of the electron are related by: = L=e2m
Is B constant in magnitude for points that lie on a magnetic field line?
A circular coil of radius 5.0 cm is wound with five turns and carries a current of 5.0 A. If the coil is placed in a uniform magnetic field of strength 5.0 T, what is the maximum torque on it?
What is the direction of the velocity of a negative charge that experiences the magnetic force shown in each of the three cases, assuming it moves perpendicular to B?