Question

A 50 cm × 85 cm rectangular loop of wire is located in a region
of uniform magnetic field with a magnitude of *B*0=3.32
Telsa, and oriented perpendicular to the wire loop. The wire is
reshaped into a circular loop of radius r = 43 cm. What is the
change in the magnitude of the the magnetic flux through the loop
as a result of this change in shape?

2. A 60 cm×60 cm square loop of wire is placed in a uniform 5.0 T magnetic field that points in the vertical direction. The wire loop is initially placed so that the plane of the loop is at an angle of 17.8∘ relative to the horizontal. What is the magnitude of the change in the magnetic flux through the loop as it is rotated from 17.8∘ to 63.3∘.

Answer #1

13. A 12-cm-diameter circular loop of wire is placed in a 1.19-T
magnetic field.
a.) When the plane of the loop is perpendicular to the field
lines, what is the magnetic flux through the loop?
b.) The plane of the loop is rotated until it makes a 35 ∘ angle
with the field lines. What is the angle in the equation ΦB =
BAcosθ for this situation?
c.) What is the magnetic flux through the loop at this
angle?

Shrinking Loop. A circular loop of flexible iron wire has an
initial circumference of 168 cm , but its circumference is
decreasing at a constant rate of 10.0 cm/s due to a tangential pull
on the wire. The loop is in a constant uniform magnetic field of
magnitude 1.00 T , which is oriented perpendicular to the plane of
the loop. Assume that you are facing the loop and that the magnetic
field points into the loop. Find the magnitude...

A circular loop of radius 11.9 cm is placed in a uniform
magnetic field.
(a) If the field is directed perpendicular to the plane of the
loop and the magnetic flux through the loop is 7.40 ✕
10−3 T · m2, what is the strength of the
magnetic field?
T
(b) If the magnetic field is directed parallel to the plane of the
loop, what is the magnetic flux through the loop?
T · m2

Question 1: A 13.7 cm diameter loop of wire is initially
oriented perpendicular to a 1.9 T magnetic field. The loop is
rotated so that its plane is parallel to the field direction in
0.33 s .
Part A: What is the average induced emf in the loop?
Question 2: A 7.4 cm diameter circular loop of wire is in a 0.71
T magnetic field. The loop is removed from the field in 0.28 s .
Assume that the loop...

An electric generator contains a coil of 125 turns of wire, each
forming a rectangular loop 45.0 cm by 20.0 cm. The coil is placed
entirely in a uniform magnetic field with magnitude B = 3.50 T and
with B-> initially perpendicular to the coil's plane. What is
the maximum value of the emf produced when the coil is spun at 1250
rev/min about an axis perpendicular to B->?

A 26.8 cm-diameter loop of wire is initially oriented
perpendicular to a 1.6 T magnetic field. The loop is rotated so
that its plane is parallel to the field direction in 0.22 s .
What is the magnitude of the average induced emf in the
loop?
Express your answer using two significant figures.
Eavg=
V

A single loop of wire of resistance R is in the form of
a rectangle of width w and length L, and its
plane is perpendicular to a uniform magnetic field of magnitude
B. If the rectangular loop is turned over (that is, it is
rotated 180o about one of its sides) in time
Δt, how much total electric charge ΔQ will flow
through any given cross-section of the
wire?

The plane of a rectangular loop of wire 5 cm x 8 cm is parallel
to a magnetic field whose flux density is 0.15 w/m^2. (a) If the
loop carries a current of 10 amp, what torque acts on it? (b) What
is the maximum torque that can be obtained with the same total
length of wire carrying the same current in this magnetic
field?

In the figure, a rectangular loop of wire with length a
= 2.5 cm, width b = 1.7 cm, and resistance R =
0.28 mΩ is placed near an infinitely long wire carrying current
i = 5.6 A. The loop is then moved away from the wire at a
constant speed v = 3.1 mm/s. When the center of the loop
is at distance r = 3.4 cm, what are (a)
the magnitude of the magnetic flux through the loop...

A single loop of wire of resistance R is in the form of
a rectangle of width w and length L, and its
plane is perpendicular to a uniform magnetic field of magnitude
B. If the rectangular loop is turned over (that is, it is
rotated 180o about one of its sides) in time
Δt, how much total electric charge ΔQ will flow
through any given cross-section of the wire? please help

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