A circular loop of wire is rotated at constant angular speed about an axis whose direction...
A circular loop of wire is rotated at constant angular speed about an axis whose direction can be varied. In a region where a uniform magnetic field points straight down, what must be the orientation of the loop's axis of rotation if the induce emf is zero? Explain
a. any horizontal orientation will do
b. it must be vertical
c. it must make an angle 45 degrees to the vertical
d. none of these answers
Homework Answers
Emf is induced when magnetic field lines cut the loop ..when the coil is rotating with vertical axis of rotation, no field lines cut the loop as it is straight down . so option b
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A circular loop of wire is rotated at constant angular speed
about an axis whose direction...
A rectangular loop rotates with a constant angular velocity about an axis as shown. It makes...
A rectangular loop rotates with a constant angular velocity
about an axis as shown. It makes one complete rotation in 0.03 s.
The magnetic field lines are straight and parallel as shown. They
are perpendicular to the axis of rotation. The lengths are c= 0.5 m
and d= 3.5 m, the strength of the magnetic field is 0.08 T. The
total resistance of the loop is 174 ?.
1. What is the magnetic flux through the loop at the instant...
you look down at the top of a circular loop of wire whose plane is horizontal...
you look down at the top of a circular loop of wire
whose plane is horizontal on a sheet of paper. the loop carries a
current in a clockwise direction. if that loop is placed in a
uniform magnetic field directed to the left on the page, which
direction will the loop rotate
HW 5: Magnetic Fields You look down at the top of a circular loop of wire whose plane is horizontal on a sheet of camies a current...
2T as shown. The loop is then rotated at an angular frequency of ??=2 ??????/??. (a.)...
2T as shown. The loop is then rotated at an angular frequency of ??=2 ??????/??. (a.) What is the maximum magnetic flux of through the loop? (b.) What is the induced EMF in the loop in 150ms? (c.) If the loop has a resistance of 0.8Ω, what is the magnitude of the current that flowsthrough the loop? Part of a single rectangular loop of wire with dimensions shown is situated inside a region of uniform magnetic field of 0.550T. The...
A circular loop of flexible conducting wire has an initial circumference of 150cm. This loop is...
A circular loop of flexible conducting wire has an initial
circumference of 150cm. This loop is in a uniform 1.5 T magnetic
field, which remains parallel to the loop's area vector. The loop
begins to shrink, decreasing the circumference at a rate of 5
cm/s.
A) Calculate the EMF around the loop 4 seconds after it begins
to shrink
B) Is the EMF increasing or decreasing with time?
C) Calculate the change in magnetic field required to keep the
EMF...
xzontal, circular, loop is in a magnetic field parallel to plane of the loop. The loop...
xzontal, circular, loop is in a magnetic field parallel to plane of the loop. The loop has a current in it. which way, if any, does the loop rotate? It is fixed so that it can only rotate about the axis shown. B - 2.00 T 1.50 A R-0.750 m axis of rotation (a) What is the orientation energy of the loop if it is rotated with side u straight up and side b straight down? 2. A square loop...
Parts A-E refer to the following figure of a circular loop of conducting wire
1) Parts A-E refer to the following figure of a circular loop of conducting wire. In the figure, Region I has a uniform magnetic field in the direction shown and Region II has no magnetic field. a) If the loop moves to the right and starts to move into Region II, what is the direction of the induced current in the wire? Circle the correct response. a) Clockwise. b) Counterclockwise. c) There is no induced current. b) If the loop moves straight down and remains...
A circular loop of radius R is rotating with angular speed w to about Z-axis in...
A circular loop of radius R is rotating with angular speed w to about Z-axis in a time-independent magnetic field, given by B = B_0 (cosa i + sina j). At t = 0, the loop lies in the Y-Z plane. Determine the magnetic flux psi and the induced EMF due to the magnetic field across the loop as a function of time.
10. A square loop (side a) is mounted on a vertical shaft and rotated at angular...
10. A square loop (side a) is mounted on a vertical shaft and rotated at angular velocity w. A uniform magnetic field B points to the right. Find the emf for this alternating current generator. 2
explain in detail please 3 A copper wire loop is initially at rest in a uniform...
explain in detail please
3 A copper wire loop is initially at rest in a uniform magnetic field. the loop is rotated about a vertical axis as shown Ax of rotation Will current flow through the wire of the loop during this time interval? If so, indicate the direction of the induced current and cxplain your reasoning. If not, explain why not.
A circular loop of wire of radius R carries a current I in a region where...
A circular loop of wire of radius R carries a current I in a region where a uniform magnetic field of magnitude B0 is present. (a) If the magnetic dipole moment of the loop makes an angle θ < π/2 with the magnetic field, do a drawing that includes the loop of current, its magnetic dipole moment, the magnetic field, and the direction of the torque experienced by the loop. Make sure to indicate the current i and the angle...
A rectangular loop rotates with a constant angular velocity
about an axis as shown. It makes one complete rotation in 0.03 s.
The magnetic field lines are straight and parallel as shown. They
are perpendicular to the axis of rotation. The lengths are c= 0.5 m
and d= 3.5 m, the strength of the magnetic field is 0.08 T. The
total resistance of the loop is 174 ?.
1. What is the magnetic flux through the loop at the instant...
you look down at the top of a circular loop of wire
whose plane is horizontal on a sheet of paper. the loop carries a
current in a clockwise direction. if that loop is placed in a
uniform magnetic field directed to the left on the page, which
direction will the loop rotate
HW 5: Magnetic Fields You look down at the top of a circular loop of wire whose plane is horizontal on a sheet of camies a current...
A circular loop of flexible conducting wire has an initial
circumference of 150cm. This loop is in a uniform 1.5 T magnetic
field, which remains parallel to the loop's area vector. The loop
begins to shrink, decreasing the circumference at a rate of 5
cm/s.
A) Calculate the EMF around the loop 4 seconds after it begins
to shrink
B) Is the EMF increasing or decreasing with time?
C) Calculate the change in magnetic field required to keep the
EMF...
xzontal, circular, loop is in a magnetic field parallel to plane of the loop. The loop has a current in it. which way, if any, does the loop rotate? It is fixed so that it can only rotate about the axis shown. B - 2.00 T 1.50 A R-0.750 m axis of rotation (a) What is the orientation energy of the loop if it is rotated with side u straight up and side b straight down? 2. A square loop...
A circular loop of radius R is rotating with angular speed w to about Z-axis in a time-independent magnetic field, given by B = B_0 (cosa i + sina j). At t = 0, the loop lies in the Y-Z plane. Determine the magnetic flux psi and the induced EMF due to the magnetic field across the loop as a function of time.
10. A square loop (side a) is mounted on a vertical shaft and rotated at angular velocity w. A uniform magnetic field B points to the right. Find the emf for this alternating current generator. 2
explain in detail please
3 A copper wire loop is initially at rest in a uniform magnetic field. the loop is rotated about a vertical axis as shown Ax of rotation Will current flow through the wire of the loop during this time interval? If so, indicate the direction of the induced current and cxplain your reasoning. If not, explain why not.
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