An electron moves along the with . As it passes the origin, what are the strength and direction of the magnetic field at the positions. (a) (1 cm, 0 cm, 0 cm) (b) (o cm, o cm, 1 cm)
(c) ( 0 cm, 1 cm, 1 cm)?
The strength and magnetic field at
A moving charge produces the magnetism. To compute the magnetism at a specific location, use the Blot Savart law. The transfer function becomes multiplied because of radial and path length dimensions are always perpendicular. The magnetic force due to a given direction in the form is formed.
This same angles between of area's axis and also the charge's rate is zero
The torque generated either by destination's direction and the mount's velocity is
The torque generated by the destination's axis or the mount's velocity is. The range again from original really does have a significance of
The earth’s magnetic dipole moment is .
a. What is the magnetic field strength on the surface of the earth at the earth’s north magnetic pole? How does this compare to the value in Table 29.1? You can assume that the current loop is deep inside the earth.
b. Astronauts discover an earth-size planet without a magnetic field. To create a magnetic field at the north pole with the same strength as earth’s, they propose running a current through a wire around the equator. What size current would be needed?
The earth’s magnetic field, with a magnetic dipole moment of , is generated by currents within the molten iron of the earth’s outer core. Suppose we model the core current as a -diameter current loop made from a 1000-km-diameter “wire.” The loop diameter is measured from the centers of this very fat wire.
a. What is the current in the current loop?
b. What is the current density in the current loop?
c. To decide whether this is a large or a small current density, compare it to the current density of a current in a -diameter wire.
94% of StudySmarter users get better grades.Sign up for free