English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Predict the direction of induced current in the situation described by the following figure. (Tapping key just released)

Advertisements
Advertisements

Question

Predict the direction of induced current in the situation described by the following figure.

Answer in Brief
Advertisements

Solution

Lenz's law specifies the direction of the induced current in a closed loop. Using Lenz’s rule, the direction of the induced current in the given situation can be predicted as follows:

The induced current in the right coil drives X to Y.

The direction of the induced current is along the xryx.

shaalaa.com
  Is there an error in this question or solution?
Chapter 6: Electromagnetic Induction - EXERCISES [Page 175]

APPEARS IN

NCERT Physics Part I and II [English] Class 12
Chapter 6 Electromagnetic Induction
EXERCISES | Q 6.1 (e) | Page 175
NCERT Physics Part I and II [English] Class 12
Chapter 6 Electromagnetic Induction
Exercise | Q 6.1 (e) | Page 229

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

State Lenz's law. Illustrate, by giving an example, how this law helps in predicting the direction of the current in a loop in the presence of a changing magnetic flux.


Predict the direction of induced current in the situation described by the following figure.


Use Lenz’s law to determine the direction of induced current in the situation described by the figure:

A wire of irregular shape turning into a circular shape.


Predict the direction of induced current in a metal ring when the ring is moved towards a straight conductor with constant speed v. The conductor is carrying current I in the direction shown in the figure.


A bar magnet is moved in the direction indicated by the arrow between two coils PQ and CD. Predict the directions of induced current in each coil.


A short magnet is moved along the axis of a conducting loop. Show that the loop repels the magnet if the magnet is approaching the loop and attracts the magnet if it is going away from the loop.


The battery discussed in the previous question is suddenly disconnected. Is a current induced in the other loop? If yes, when does it start and when does it end? Do the loops attract each other or repel?


Consider the situation shown in figure. If the switch is closed and after some time it is opened again, the closed loop will show ____________ .


Which of the following statements is not correct?


For a coil having L = 2 mH, current flows at the rate of 10-3 AIS. The e.m.f induced is


Same as problem 4 except the coil A is made to rotate about a vertical axis (figure). No current flows in B if A is at rest. The current in coil A, when the current in B (at t = 0) is counterclockwise and the coil A is as shown at this instant, t = 0, is ______.


A solenoid is connected to a battery so that a steady current flows through it. If an iron core is inserted into the solenoid, will the current increase or decrease? Explain.


Consider a metal ring kept (supported by a cardboard) on top of a fixed solenoid carrying a current I (Figure). The centre of the ring coincides with the axis of the solenoid. If the current in the solenoid is switched off, what will happen to the ring?


A long solenoid ‘S’ has ‘n’ turns per meter, with diameter ‘a’. At the centre of this coil we place a smaller coil of ‘N’ turns and diameter ‘b’ (where b < a). If the current in the solenoid increases linearly, with time, what is the induced emf appearing in the smaller coil. Plot graph showing nature of variation in emf, if current varies as a function of mt2 + C.


A coil is suspended in a uniform magnetic field, with the plane of the coil parallel to the magnetic lines of force. When a current is passed through the coil it starts oscillating: It is very difficult to stop. But if an aluminium plate is placed near to the coil, it stops. This is due to:


Predict the direction of induced current in the situation described by the following figure.


Predict the direction of induced current in the situation described by the following figure.


In the above diagram, a strong bar magnet is moving towards solenoid-2 from solenoid-1. The direction of induced current in solenoid-1 and that in solenoid-2, respectively, are through the directions:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×