Question

Given a 0.5 x 0.3 m rectangular current loop carrying 5 A of current, A) what is the magnitude of the magnetic dipole moment of the loop? B) If the loop is lying flat on this page with the current running clockwise around the loop, what is the direction of the magnetic diploe moment vector?

11. In the previous problem, if the magnetic field, B = 0.5 T is oriented in the +y-direction (toward the top of this page), then A) what is the magnitude and direction of the torque exerted on the loop by the magnetic field? B) In the previous problem, calculate the net external force exerted by the magnetic field on the current loop.

Answer #1

A rectangular (20.0 cm x 55.0 cm) current loop carrying a
current of 20.0 A was located with its plane parallel to a uniform
1.5 T magnetic field.
(a) Label the corners of the rectangle (a, b c, and d) and
calculate the magnitude of the magnetic force on each side of the
rectangular current loop
(b) Show the magnetic force direction on each side of the
rectangle using appropriate symbols.
(c) What is the total force on the loop?...

a) What is the magnitude of the torque on a wire loop in the
shape of a circle of one half meter in radius, carrying a current
of 250 Amperes in a magnetic field of 1.5 Tesla, and oriented so
the normal of the circle is at 45 degrees to the B field direction?
b.) What is the magnitude of the magnetic dipole moment? c.) What
is the potential energy stored in this configuration?

To find the torque on a current carrying flat loop of wire in a
uniform magnetic field you need to multiply the current times the
cross product of the area vector of the loop with the magnetic
field vector -- I ( A x B ). How
would you determine the magnitude and direction of the area vector
A ? What would happen to the loop if it were
placed in the magnetic field with A perpendicular
to B and...

A flat,106 turn current‑carrying loop is immersed in a uniform
magnetic field. The area of the loop is 5.95×10−4 m2, and the angle
between its magnetic dipole moment and the field is 43.1∘. Find the
strength of the magnetic field that causes a torque of 1.53×10−5
N⋅m to act on the loop when a current of 0.00395 A flows in it.

A flat, 118‑turn, current‑carrying loop is immersed in a uniform
magnetic field. The area of the loop is 8.09 cm2 and the angle
between its magnetic dipole moment and the field is 50.9∘. Find the
strength of the magnetic field that causes a torque of 2.39×10−5
N⋅m to act on the loop when a current of 3.81 mA flows in it.

The magnetic torque exerted on a flat current carrying loop of
wire by a uniform magnetic field is: Select one: a. maximum when
the plane of the loop is perpendicular to the magnetic field b.
minimum when the plane of the loop is perpendicular to the magnetic
field c. independent of the orientation of the loop d. maximum when
the plane of the loop at an 45 to the magnetic field e. minimum
when the plane of the loop is...

A square conducting loop of side length a = 11 cm sits in the
xy-plane. A uniform magnetic field of strength B = 0.5 mT points
along the positive y-axis. A current of I = 0.3 mA is run through
the loop.
a) Find the net force on the loop.
b) Find the torque on the loop.
c) What is the magnetic dipole moment of the current loop?
d) Find the magnitude of the force on one of the x-direction...

A
square loop of side 4 cm, carrying a current of 5.2 A, is placed
inside of a uniform magnetic field of magnitude 1.55 T pointing in
the z direcrion. If the square loop makes an angle of 30 degrees
with the magnetic field, what is the magnetic moment of the
loop?
What is the magnitude of the torque on the loop?

A circular wire loop whose radius is 16.0 cm carries a current
of 2.58 A. It is placed so that the normal to its plane makes an
angle of 41.0° with a uniform magnetic field of 1.20 T. The initial
torque on the current loop will make the magnetic dipole moment
vector Will it?:
A. Try to align against the magnetic field
B. Try to align with the magnetic field.
C .There will be no torque on the loop
Then...

Consider a current loop lying in the plane of the page. Suppose
that there is a magnetic field which is pointing into the page. If
the area of the loop is increased by stretching it, what direction
is the induced current in the loop? (clockwise or
counterclockwise)

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