Question

A 13-cm-diameter circular loop of wire is placed in a 0.57-T magnetic field.

A.When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop?

Express your answer to two significant figures and include the appropriate units.

B.The plane of the loop is rotated until it makes a 45 ∘angle with the field lines. What is the angle in the equation ΦB = BAcosθ for this situation?

Express your answer using two significant figures.

C.What is the magnetic flux through the loop at this angle?

Express your answer to two significant figures and include the appropriate units.

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?

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

The magnetic field perpendicular to a single 14.2-cm-diameter
circular loop of copper wire decreases uniformly from 0.670 T to
zero. If the wire is 2.75 mm in diameter, how much charge moves
past a point in the coil during this operation? The resistivity of
copper is 1.68×10−8Ω⋅m. Express your answer to three significant
figures and include the appropriate units.

The magnetic field perpendicular to a single 15.7-cm-diameter
circular loop of copper wire decreases uniformly from 0.550 T to
zero.
If the wire is 2.75 mm in diameter, how much charge moves past a
point in the coil during this operation? The resistivity of copper
is 1.68×10−8Ω⋅m. Express your answer to three significant figures
and include the appropriate units.

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...

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

A
circular loop of wire is perpendicular to a 0.16 T uniform magnetic
field. The magnetic flux through the loop is 24 mWb. What is the
radius of the loop?

A fixed 11.8-cm-diameter wire coil is perpendicular to a
magnetic field 0.44 T pointing up. In 0.22 s, the field is changed
to 0.25 T pointing down.
What is the average induced emf in the coil?
Express your answer to two significant figures and include the
appropriate units.

A fixed 15.6-cm-diameter wire coil is perpendicular to a
magnetic field 0.52 T pointing up. In 0.24 s, the field is changed
to 0.31 T pointing down. What is the average induced emf in the
coil? Express your answer to two significant figures and include
the appropriate units.

A fixed 11.8-cm
c
m
-diameter wire coil is perpendicular to a magnetic field 0.52
T
T
pointing up. In 0.25 s
s
, the field is changed to 0.24 T
T
pointing down.
What is the average induced emf in the coil?
Express your answer to two significant figures and include the
appropriate units.

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