In this problem, you will use Lenz's law to explore what happens when an electromagnet is activated a short distance from a wire loop. You will need to use the right-hand rule to find the direction of the induced current.
When the switch is open, which of the following statements about the magnetic flux through the wire loop is true? Assume that the direction of the vector area of the wire loop is to the right.
There is no magnetic flux through the wire loop
There is a positive flux through the wire loop.
There is a negative flux through the wire loop.
What is the direction of the induced current in the wire loop (as seen from the left when the switch is open?
There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise.
Now the switch on the electromagnet is closed. What is the direction of the induced current in the wire loop immediately after the switch is closed (as seen from the left)?
There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise.
Finally, the switch on the electromagnet is reopened. The magnitude of the external magnetic flux through the wire loop ___ (A. increases, B. decreases, C. remains constant), and there is ___ (A. zero, B. a clockwise, C. a counterclockwise) current induced in the loop (as seen from the left). Enter the letters corresponding to the responses that correctly complete the statement above. For example, if the correct answers are A and C, type A, C
Homework Answers
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When the switch is open, which of the following statements about the magnetic flux through the...
Part D Finally, the switch on the electromagnet is reopened. The magnitude of the external magnetic...
Part D
Finally, the switch on the electromagnet is reopened. The
magnitude of the external magnetic flux through the wire loop
______ (A. increases, B. decreases, C. remains constant), and there
is _______ (A. zero, B. a clockwise, C. a counterclockwise) current
induced in the loop (as seen from the left).
Enter the letters corresponding to the responses that correctly
complete the statement above. For example, if the correct answers
are A and C, type A,C
________________
Now consider the...
The switch on the electromagnet, initially open, is closed. What is the direction of the induced...
The switch on the electromagnet, initially open, is closed. What is the direction of the induced current in the wire loop (as seen from the left)? There is no induced current The induced current is clockwise. The induced current is counterclockwise. Submit Request Answer In this problem, you will use Lenz's law to explore what happens when an electromagnet is activated a short distance from a wire loop. You will need to use the right-hand rule to find the direction...
Part D Finally, the switch on the electromagnet is reopened. The magnitude of the external magnetic...
Part D
Finally, the switch on the electromagnet is reopened. The
magnitude of the external magnetic flux through the wire loop
______ (A. increases, B. decreases, C. remains constant), and there
is _______ (A. zero, B. a clockwise, C. a counterclockwise) current
induced in the loop (as seen from the left).
Part F
Now the switch on the electromagnet is
reopened. The magnitude of the external magnetic flux through the
wire loop ______ (A. increases, B. decreases, C....
In this problem, you will use Lenz's law to explore what happenswhen an electromagnet is activated...
In this problem, you will use Lenz's law to explore what
happenswhen an electromagnet is activated a short distance from a
wireloop.
You will need to use the right-hand rule to find the
directionof the induced current.
Part A
When the switch is open, which of
thefollowing statements about the magnetic flux through the wire
loopis true? Assume that the direction of the vector area of the
wireloop is to the right.
There is
nomagnetic flux through the wire loop....
To practice Tactics Box 25.1Using Lenz's law. Lenz's law is a useful rule for determining...
To practice Tactics Box 25.1
Using Lenz's law. Lenz's law is a useful rule for determining the
direction of the induced current in a loop. Specifically, it says
that there is an induced current in a closed conducting loop if and
only if the magnetic flux through the loop is changing. The
direction of the induced current is such that the induced magnetic
field opposes the change in the flux. The following Tactics Box
summarizes the essential steps in using...
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...
Choose the correct answer for each given situation using Lenz's Law (1 point) and explain the...
Choose the correct answer for each given situation using Lenz's Law (1 point) and explain the reason for choosing the answer you did (1 point): 1) A wire loop is being pulled through a uniform magnetic field that suddenly ends. What is the direction of the induced current? a) Clockwise b) Counterclockwise c) No induced current Explain your answer: O 2) What is the direction of the induced current if the B field suddenly increases while the loop is in...
The magnetic flux through a loop of wire is zero...Can there be an induced current...
The magnetic flux through a loop of wire is zero...Can there be an induced current in the loop at this instant?YES Part B Explain. Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
In the figure, the magnetic flux through the loop increases according to the relation ΦB =...
In the figure, the magnetic flux through the loop increases
according to the relation ΦB = 8.9t2
+ 9.2t, where ΦB is in milliwebers and
t is in seconds. (a) What is the
magnitude of the emf induced in the loop when t = 2.4 s?
(b) Is the direction of the current through
R to the right or left?
For each of the actions depicted below, a magnet and/or metal loop moves with velocity v?...
For each of the actions depicted below, a magnet and/or metal
loop moves with velocity v? (v? is constant and has the same
magnitude in all parts). Determine whether a current is induced in
the metal loop. If so, indicate the direction of the current in the
loop, either clockwise or counterclockwise when seen from the right
of the loop. The axis of the magnet is lined up with the center of
the loop.
Part A
For the action depicted...
Part D
Finally, the switch on the electromagnet is reopened. The
magnitude of the external magnetic flux through the wire loop
______ (A. increases, B. decreases, C. remains constant), and there
is _______ (A. zero, B. a clockwise, C. a counterclockwise) current
induced in the loop (as seen from the left).
Enter the letters corresponding to the responses that correctly
complete the statement above. For example, if the correct answers
are A and C, type A,C
________________
Now consider the...
The switch on the electromagnet, initially open, is closed. What is the direction of the induced current in the wire loop (as seen from the left)? There is no induced current The induced current is clockwise. The induced current is counterclockwise. Submit Request Answer In this problem, you will use Lenz's law to explore what happens when an electromagnet is activated a short distance from a wire loop. You will need to use the right-hand rule to find the direction...
Part D
Finally, the switch on the electromagnet is reopened. The
magnitude of the external magnetic flux through the wire loop
______ (A. increases, B. decreases, C. remains constant), and there
is _______ (A. zero, B. a clockwise, C. a counterclockwise) current
induced in the loop (as seen from the left).
Part F
Now the switch on the electromagnet is
reopened. The magnitude of the external magnetic flux through the
wire loop ______ (A. increases, B. decreases, C....
In this problem, you will use Lenz's law to explore what
happenswhen an electromagnet is activated a short distance from a
wireloop.
You will need to use the right-hand rule to find the
directionof the induced current.
Part A
When the switch is open, which of
thefollowing statements about the magnetic flux through the wire
loopis true? Assume that the direction of the vector area of the
wireloop is to the right.
There is
nomagnetic flux through the wire loop....
To practice Tactics Box 25.1
Using Lenz's law. Lenz's law is a useful rule for determining the
direction of the induced current in a loop. Specifically, it says
that there is an induced current in a closed conducting loop if and
only if the magnetic flux through the loop is changing. The
direction of the induced current is such that the induced magnetic
field opposes the change in the flux. The following Tactics Box
summarizes the essential steps in using...
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...
Choose the correct answer for each given situation using Lenz's Law (1 point) and explain the reason for choosing the answer you did (1 point): 1) A wire loop is being pulled through a uniform magnetic field that suddenly ends. What is the direction of the induced current? a) Clockwise b) Counterclockwise c) No induced current Explain your answer: O 2) What is the direction of the induced current if the B field suddenly increases while the loop is in...
In the figure, the magnetic flux through the loop increases
according to the relation ΦB = 8.9t2
+ 9.2t, where ΦB is in milliwebers and
t is in seconds. (a) What is the
magnitude of the emf induced in the loop when t = 2.4 s?
(b) Is the direction of the current through
R to the right or left?
For each of the actions depicted below, a magnet and/or metal
loop moves with velocity v? (v? is constant and has the same
magnitude in all parts). Determine whether a current is induced in
the metal loop. If so, indicate the direction of the current in the
loop, either clockwise or counterclockwise when seen from the right
of the loop. The axis of the magnet is lined up with the center of
the loop.
Part A
For the action depicted...
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