358654
In the figure, a conducting ring of certain resistance is falling towards a current carrying straight long conductor. The ring and conductor are in the same plane. Then the
1 induced electric current is zero
2 induced electric current is anticlockwise
3 induced electric current is clockwise
4 ring will come to rest
Explanation:
As per Lenz's law, the induced current always opposes the cause.
KCET - 2024
PHXII06:ELECTROMAGNETIC INDUCTION
358655
A beam of protons moves along the line, \(A B\), which lies in the same plane as a circular conducting wire as shown in the diagram. What will be the direction of current induced, if any, in the loop?
1 Clockwise always
2 Anti clockwise always
3 The current will change direction from clock wise to anticlockwise direction.
4 No current will be induced
Explanation:
As the protons are moving from left to right, the flux linked with the loop (which is out of the page) will first increase and then decrease as the protons passes by. So the induced current in the loop will be first anticlockwise and will change direction as the protons pass by.
PHXII06:ELECTROMAGNETIC INDUCTION
358656
A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will
1 move down with an acceleration equal to \(g\)
2 oscillate inside the tube
3 move down with almost constant speed
4 move down with an acceleration greater than \(g\).
Explanation:
After some time the bar magnet will move down with almost constant speed as both force (gravity and force due to Eddy currents) becomes equal.
JEE - 2023
PHXII06:ELECTROMAGNETIC INDUCTION
358657
Two similar circular loops carry equal currents in the same direction. On moving the coils further apart, the electric current will
1 remain unaltered
2 increase in one and decreases in the second
3 increase in both
4 decrease in both
Explanation:
Two circular loops carrying current in the same direction will attract each other. If they are now separated, induced current will try to keep the status quo, by increasing the current in both the coils.
358654
In the figure, a conducting ring of certain resistance is falling towards a current carrying straight long conductor. The ring and conductor are in the same plane. Then the
1 induced electric current is zero
2 induced electric current is anticlockwise
3 induced electric current is clockwise
4 ring will come to rest
Explanation:
As per Lenz's law, the induced current always opposes the cause.
KCET - 2024
PHXII06:ELECTROMAGNETIC INDUCTION
358655
A beam of protons moves along the line, \(A B\), which lies in the same plane as a circular conducting wire as shown in the diagram. What will be the direction of current induced, if any, in the loop?
1 Clockwise always
2 Anti clockwise always
3 The current will change direction from clock wise to anticlockwise direction.
4 No current will be induced
Explanation:
As the protons are moving from left to right, the flux linked with the loop (which is out of the page) will first increase and then decrease as the protons passes by. So the induced current in the loop will be first anticlockwise and will change direction as the protons pass by.
PHXII06:ELECTROMAGNETIC INDUCTION
358656
A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will
1 move down with an acceleration equal to \(g\)
2 oscillate inside the tube
3 move down with almost constant speed
4 move down with an acceleration greater than \(g\).
Explanation:
After some time the bar magnet will move down with almost constant speed as both force (gravity and force due to Eddy currents) becomes equal.
JEE - 2023
PHXII06:ELECTROMAGNETIC INDUCTION
358657
Two similar circular loops carry equal currents in the same direction. On moving the coils further apart, the electric current will
1 remain unaltered
2 increase in one and decreases in the second
3 increase in both
4 decrease in both
Explanation:
Two circular loops carrying current in the same direction will attract each other. If they are now separated, induced current will try to keep the status quo, by increasing the current in both the coils.
358654
In the figure, a conducting ring of certain resistance is falling towards a current carrying straight long conductor. The ring and conductor are in the same plane. Then the
1 induced electric current is zero
2 induced electric current is anticlockwise
3 induced electric current is clockwise
4 ring will come to rest
Explanation:
As per Lenz's law, the induced current always opposes the cause.
KCET - 2024
PHXII06:ELECTROMAGNETIC INDUCTION
358655
A beam of protons moves along the line, \(A B\), which lies in the same plane as a circular conducting wire as shown in the diagram. What will be the direction of current induced, if any, in the loop?
1 Clockwise always
2 Anti clockwise always
3 The current will change direction from clock wise to anticlockwise direction.
4 No current will be induced
Explanation:
As the protons are moving from left to right, the flux linked with the loop (which is out of the page) will first increase and then decrease as the protons passes by. So the induced current in the loop will be first anticlockwise and will change direction as the protons pass by.
PHXII06:ELECTROMAGNETIC INDUCTION
358656
A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will
1 move down with an acceleration equal to \(g\)
2 oscillate inside the tube
3 move down with almost constant speed
4 move down with an acceleration greater than \(g\).
Explanation:
After some time the bar magnet will move down with almost constant speed as both force (gravity and force due to Eddy currents) becomes equal.
JEE - 2023
PHXII06:ELECTROMAGNETIC INDUCTION
358657
Two similar circular loops carry equal currents in the same direction. On moving the coils further apart, the electric current will
1 remain unaltered
2 increase in one and decreases in the second
3 increase in both
4 decrease in both
Explanation:
Two circular loops carrying current in the same direction will attract each other. If they are now separated, induced current will try to keep the status quo, by increasing the current in both the coils.
358654
In the figure, a conducting ring of certain resistance is falling towards a current carrying straight long conductor. The ring and conductor are in the same plane. Then the
1 induced electric current is zero
2 induced electric current is anticlockwise
3 induced electric current is clockwise
4 ring will come to rest
Explanation:
As per Lenz's law, the induced current always opposes the cause.
KCET - 2024
PHXII06:ELECTROMAGNETIC INDUCTION
358655
A beam of protons moves along the line, \(A B\), which lies in the same plane as a circular conducting wire as shown in the diagram. What will be the direction of current induced, if any, in the loop?
1 Clockwise always
2 Anti clockwise always
3 The current will change direction from clock wise to anticlockwise direction.
4 No current will be induced
Explanation:
As the protons are moving from left to right, the flux linked with the loop (which is out of the page) will first increase and then decrease as the protons passes by. So the induced current in the loop will be first anticlockwise and will change direction as the protons pass by.
PHXII06:ELECTROMAGNETIC INDUCTION
358656
A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will
1 move down with an acceleration equal to \(g\)
2 oscillate inside the tube
3 move down with almost constant speed
4 move down with an acceleration greater than \(g\).
Explanation:
After some time the bar magnet will move down with almost constant speed as both force (gravity and force due to Eddy currents) becomes equal.
JEE - 2023
PHXII06:ELECTROMAGNETIC INDUCTION
358657
Two similar circular loops carry equal currents in the same direction. On moving the coils further apart, the electric current will
1 remain unaltered
2 increase in one and decreases in the second
3 increase in both
4 decrease in both
Explanation:
Two circular loops carrying current in the same direction will attract each other. If they are now separated, induced current will try to keep the status quo, by increasing the current in both the coils.
