Question
In: Physics
Consider a single coil carrying a current I. a. What are the electric and magnetic fields...
Consider a single coil carrying a current I.
a. What are the electric and magnetic fields at the center of the coil?
b. Now suppose the coil is moving at a speed v perpendicular to its axis. What are the electric and magnetic fields at the center of the coil?
c. What is the physical origin of the electric field you just found? Where are the charges?
Solutions
genius_generous answered 2 years agoRelated Solutions
is the torque on a current carrying coil in a uniform magnetic field always zero?
is the torque on a current carrying coil in a uniform magnetic
field always zero?
The magnetic dipole moment (μ) of a coil depends on the current (I), the area of...
The magnetic dipole moment (μ) of a coil depends on the current
(I), the area of the coil (A), and the number of loops (N). Rank
the three different coils of wire shown figure below in order by
the magnitude of their magnetic dipole moment.
Rank the coils from greatest to least magnetic dipole moment. If
the coils have the same magnetic dipole moment, place them on top
of each other.
A proton travels through uniform magnetic and electric fields. The magnetic field is in the negative...
A proton travels through uniform magnetic and electric fields.
The magnetic field is in the negative x direction and has a
magnitude of 3.52 mT. At one instant the velocity of the proton is
in the positive y direction and has a magnitude of 2600 m/s. At
that instant, what is the magnitude of the net force acting on the
proton if the electric field is (a) in the positive z direction and
has a magnitude of 5.40 V/m, (b)...
A proton travels through uniform magnetic and electric fields. The magnetic field is in the negative...
A proton travels through uniform magnetic and electric fields.
The magnetic field is in the negative x direction and has
a magnitude of 3.50 mT. At one instant the velocity of the proton
is in the positive y direction and has a magnitude of 1830
m/s. At that instant, what is the magnitude of the net force acting
on the proton if the electric field is (a) in the
positive z direction and has a magnitude of 5.10 V/m,
(b)...
An electron moves in crossed electric and magnetic fields on a spiral (helical) trajectory. What are...
An electron moves in crossed electric and magnetic
fields on a spiral (helical) trajectory. What are the values of the
respective magnetic and electric fields, so that the radius of a
helix is 10cm, and its a pitch (vertical height of one complete
helix turn) is 1 cm. Hint: approximate the motion as a circular
motion is XY only due to magnetic field and motion in Z direction
only due to electric field.
An electron moves in crossed electric and...
What is the direction of the magnetic field of a straight, current-carrying wire?
What is the direction of the magnetic field of a straight,
current-carrying wire?
Compare and contrast Ampere's law for magnetic fields to Gauss's law for electric fields (how they...
Compare and contrast Ampere's law for magnetic fields to Gauss's
law for electric fields (how they are similar, how they are
different). Include in your discussion why Gauss's law for magnetic
fields is not very useful. Please be detailed in your response and
demonstrate mastery of the concept of Ampere's law and how it is
used.
The magnetic field at a distance ro from a long straight wire carrying a current I...
The magnetic field at a distance
ro from a long straight wire carrying a current
I is given by B=u0I/2PI ro . For the
statements below, circle the word or phrase that correctly
completes the sentence.
A) For
a fixed current of 3.00 A in the wire, the magnetic field sensed by
a Hall probe will _________________ if the distance
r0is changed from 0.6 cm to 1.2 cm. (double,
triple, reduce to half, reduce by 0.6 mT)
B) If the...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of...
A magnetic field is perpendicular to the plane of a single-turn
circular coil. The magnitude of the field is changing, so that an
emf of 0.25 V and a current of 2.5 A are induced in the coil. The
wire is then re-formed into a single-turn square coil, which is
used in the same magnetic field (again perpendicular to the plane
of the coil and with a magnitude changing at the same rate). What
(a) emf and (b) current are...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of...
A magnetic field is perpendicular to the plane of a single-turn
circular coil. The magnitude of the field is changing, so that an
emf of 0.81 V and a current of 3.8 A are induced in the coil. The
wire is then re-formed into a single-turn square coil, which is
used in the same magnetic field (again perpendicular to the plane
of the coil and with a magnitude changing at the same rate). What
(a) emf and (b) current are...
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