If a bar magnet is falling through a loop of wire, the induced current in the...
If a bar magnet is falling through a loop of wire, the induced current in the loop of wire sets up a field which exerts a force on the magnet. This force between the magnet and the loop will be repulsive when:
A. the magnet enters the loop
B. the magnet is halfway through
C. the magnet is leaving the loop
D. never
Please provide an explanation!
Homework Answers
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If a bar magnet is falling through a loop of wire, the induced
current in the...
Conceptual: A conducting loop of wire is oriented horizontally, and a magnet is falling downward, through...
Conceptual: A conducting loop of wire is oriented horizontally, and a magnet is falling downward, through the loop. (a) Draw the direction of the induced current that flows in the loop as the magnet falls downward. (b) Sketch and label the magnetic field lines that are created by the induced current in the loop. (c) Does this create an attractive or repulsive force between the loop and magnet?
Q4 A bar magnet is held above a loop of wire in a horizontal plane, as...
Q4 A bar magnet is held above a loop of wire in a horizontal plane, as shown in Figure. According to the Lenz's law (write the Lenz's law), find the direction of the induced current through the resistor (a) while the magnet is falling toward the loop and (b) after the magnet has passed through the loop and moves away from it (draw the magnetic field lines of both the magnet and loop). R
A. The drawing shows a bar magnet falling through a metal ring. In part a the...
A. The drawing shows a bar magnet falling through a metal ring.
In part a the ring is solid all the way around, but in
part b it has been cut through.
1. Explain why the motion of the magnet in part a is
retarded when the magnet is above the ring and below the ring as
well.
2. Draw any induced currents that appear in the ring.
3. Explain why the motion of the magnet is unaffected by the...
2. A bar magnet is dropped through a loop of wire as shown. Looking at the...
2. A bar magnet is dropped through a
loop of wire as shown. Looking at the loop from above,
a) What is the direction of the
current as the magnet enters the loop from the top?
b) What is the direction of the
current as the magnet as it leaves the loop from the bottom?
c) What is the direction of the
current at the instant it is in the middle half above and half
below?
S N
Consider the bar magnet shown in the figure below. It is falling through the loop of...
Consider the bar magnet shown in the figure below. It is falling through the loop of wire with a constant velocity and with the north pole entering first. 9. The current moving through the resistor will be a. from left to right b. from right to left C. zero
answer all Q pls 8. A bar magnet is dropped through a loop of copper wire as shown. Recall that ou magnet, magnetic field lines point away from a north pole and toward a south p positive direct...
answer all Q pls
8. A bar magnet is dropped through a loop of copper wire as shown. Recall that ou magnet, magnetic field lines point away from a north pole and toward a south p positive direction of the induced current I in the loop is as shown by the arrows on the loop, the variation of I with time as the bar magnet falls through th by which of the following graphs (the time when the midpoint of...
electricity may be generated by rotating a loop of wire between the poles of a magnet....
electricity may be generated by rotating a loop of wire
between the poles of a magnet. the induced current is least
when
b. 5.0 T/m d. 0.25 1/m 31) Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced aelean tendieular toahe Watp che masgnetic feld a. the plane of the loop is perpendicular to the magnetic field. b. the plane of the loop makes an angle of 45° with the magnetic...
Magnetic induction lab: 5 questions A vertical bar magnet is dropped through the center of a...
Magnetic induction lab: 5 questions
A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its south pole leading. At the moment just before the south pole passes through the loop, what is the direction of the induced current in the loop (viewed from above)? 2. Explain your answer to the previous question. 3. A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its south pole leading....
1. A conducting ring is falling toward a bar magnet as shown in the figure above....
1. A conducting ring is falling toward a bar magnet as shown
in the figure above. Explain why there will be a repulsive force
between the ring and a magnet.
2. A respiration detector can prevent infant sudden death
syndrome by sounding an alarm when the infant stops breathing. The
detector consists a coil placed on the person’s chest and another
on the person’s back. There is a constant current in one coil, but
not in the other. Explain how...
A scientist creates a “magnet detector” by attaching a current meter to a single loop of...
A scientist creates a “magnet detector” by attaching a current meter to a single loop of wire (Ndet=1). The wire loop has a radius of 10.0cm and a resistance of 0.0200. To test the device, the scientist moves the North pole of a bar magnet toward the wire loop. This causes the magnetic field inside the loop to increase from 0.00T to 4.5010-3T in a time of 0.250sec. Calculate the induced current measured in the wire loop. In another test,...
Q4 A bar magnet is held above a loop of wire in a horizontal plane, as shown in Figure. According to the Lenz's law (write the Lenz's law), find the direction of the induced current through the resistor (a) while the magnet is falling toward the loop and (b) after the magnet has passed through the loop and moves away from it (draw the magnetic field lines of both the magnet and loop). R
A. The drawing shows a bar magnet falling through a metal ring.
In part a the ring is solid all the way around, but in
part b it has been cut through.
1. Explain why the motion of the magnet in part a is
retarded when the magnet is above the ring and below the ring as
well.
2. Draw any induced currents that appear in the ring.
3. Explain why the motion of the magnet is unaffected by the...
2. A bar magnet is dropped through a
loop of wire as shown. Looking at the loop from above,
a) What is the direction of the
current as the magnet enters the loop from the top?
b) What is the direction of the
current as the magnet as it leaves the loop from the bottom?
c) What is the direction of the
current at the instant it is in the middle half above and half
below?
S N
Consider the bar magnet shown in the figure below. It is falling through the loop of wire with a constant velocity and with the north pole entering first. 9. The current moving through the resistor will be a. from left to right b. from right to left C. zero
answer all Q pls
8. A bar magnet is dropped through a loop of copper wire as shown. Recall that ou magnet, magnetic field lines point away from a north pole and toward a south p positive direction of the induced current I in the loop is as shown by the arrows on the loop, the variation of I with time as the bar magnet falls through th by which of the following graphs (the time when the midpoint of...
electricity may be generated by rotating a loop of wire
between the poles of a magnet. the induced current is least
when
b. 5.0 T/m d. 0.25 1/m 31) Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced aelean tendieular toahe Watp che masgnetic feld a. the plane of the loop is perpendicular to the magnetic field. b. the plane of the loop makes an angle of 45° with the magnetic...
Magnetic induction lab: 5 questions
A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its south pole leading. At the moment just before the south pole passes through the loop, what is the direction of the induced current in the loop (viewed from above)? 2. Explain your answer to the previous question. 3. A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its south pole leading....
1. A conducting ring is falling toward a bar magnet as shown
in the figure above. Explain why there will be a repulsive force
between the ring and a magnet.
2. A respiration detector can prevent infant sudden death
syndrome by sounding an alarm when the infant stops breathing. The
detector consists a coil placed on the person’s chest and another
on the person’s back. There is a constant current in one coil, but
not in the other. Explain how...
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