Home
Class 12
PHYSICS
A bar magnet moves toward two idential p...

A bar magnet moves toward two idential parallel circular loops with a contant velocity `upsilon` as shown in Fig.

A

(a) Both the loops will atytract each other

B

(b) Both the loops will repel each other

C

(c ) The induced current in `A` is more than that in `B`

D

(d) The induced current is same in both the loops

Text Solution

Verified by Experts

The correct Answer is:
A, C

(a,c):
Current induced in both `A and B` will be in same direction . So they will attract each other.
A is closer to magnet, so rate of change of flux in `A` will be more. So more current is induced in `A`.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Exercises Asserton - Reasoning|8 Videos
  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Exercises Linked Comprehension|36 Videos
  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Exercises Single Correct|79 Videos
  • ELECTRICAL MEASURING INSTRUMENTS

    CENGAGE PHYSICS ENGLISH|Exercise M.C.Q|2 Videos
  • ELECTRON,PHONTS,PHOTOELECTRIC EFFECT & X-RAYS

    CENGAGE PHYSICS ENGLISH|Exercise dpp 3.3|15 Videos

Similar Questions

Explore conceptually related problems

A bar magnet is moved between two parallel circular loops A and B with a constant velocity v as shown in Fig. 3.180.

A source of frequency f is moving towards the observer along the line SO with a constant velocity upsilon_(s) as shown in figure. Plot f' versus t graph . Where f' is the changed frequency observed by the observer.

Two straight conducting rails form a right angle where their ends are joined. A conducting bar in contact with the rails starts at the vertex at time t = 0 and moves with constant velocity v along them as shown in Fig. A magnetic field vec(B) is directed into the page. the induced emf in the circuit at any time t is proportional to

Two straight conducting rails form a right angle where their ends are joined. A conducting bar in contact with the rails starts at the vertex at time t = 0 and moves with constant velocity v along them as shown in Fig. A magnetic field vec(B) is directed into the page. the induced emf in the circuit at any time t is proportional to

A rectangular loop and a circular loop are moving out of a uniform magnetic field to a field-free region with a constant velocity 'v' as shown in the figure . Explain the which loop do you expect the induced emf to the constant during the passage out of the field region . The magnetic field is normal to the loops .

Two barmagnets are quickly moved towards a metallic loop connected across a capacitor'C' as shown in the figure. Predict the polarity of the capacitor.

Assertion A conducting loop is rotated in a uniform magnetic field with constant angular velocity omega as shown in figure. At time t = 0, plane of the loop is perpendicular to the magnetic field. Induced emf produced in the loop is maximum when plane of loop is parallel to magnetic field. Reason When plane of loop is parallel to magnetic field, then magnetic flux passing through the loop is zero.

A uniform circular loop of radius a and resistance R palced perpendicular to a uniform magnetic field B . One half of the loop is rotated about the diameter with angular velocity omega as shown in Fig. Then, the current in the loop is

A uniform circular loop of radius a and resistance R palced perpendicular to a uniform magnetic field B . One half of the loop is rotated about the diameter with angular velocity omega as shown in Fig. Then, the current in the loop is

Statement I: A resistance R is connected between the two ends of the parallel smooth conducting rails. A conducting rod lies on these fixed horizontal rails and a uniform constant magnetic field B exists perpendicular to the plane of the rails as shown in Fig. if the rod is given a velocity upsilon and released as shown in Fig. 3.188, it will stop after some time. the total work done by magnetic field negative. Statement II: If force acts opposite to direction of velocity its work done is negative.

CENGAGE PHYSICS ENGLISH-ELECTROMAGNETIC INDUCTION-Exercises Multiple Correct
  1. A uniform circular loop of radius a and resistance R palced perpendicu...

    Text Solution

    |

  2. A conducting wire of length l and mass m can slide without friction on...

    Text Solution

    |

  3. A conducting rod of length l is hinged at point O. It is a free to rot...

    Text Solution

    |

  4. A conducting rod of length is moved at constant velocity v(0) on two p...

    Text Solution

    |

  5. In the figure shown 'R' is a fixed conducting fixed ring of negligible...

    Text Solution

    |

  6. An infinite current-carrying conductor is placed along the z-axis and ...

    Text Solution

    |

  7. A disc of radius R is rolling without sliding on a horizontal surface ...

    Text Solution

    |

  8. A conducting loop rotates with constant angular velocity about its fix...

    Text Solution

    |

  9. A bar magnet is moved between two parallel circular loops A and B with...

    Text Solution

    |

  10. A bar magnet moves toward two idential parallel circular loops with a...

    Text Solution

    |

  11. A highly conducting ring of radius R is perpendicular to and concentri...

    Text Solution

    |

  12. The acceleration of the charge on the gap faces will cease when the to...

    Text Solution

    |

  13. In the figure shown , the wires P(1)Q(1) and P(2)Q(2) are made to slid...

    Text Solution

    |

  14. A small magnet M is allowed to fall through a fixed horizontal conduct...

    Text Solution

    |

  15. The counductor AD moves to the right in a uniform magnetic field direc...

    Text Solution

    |

  16. The magnitude of the earth's magnetic field at a place is B(0) and an...

    Text Solution

    |

  17. A vertical conducting ring ogradius R falls vertically in a horizontal...

    Text Solution

    |

  18. A flat coil, C, of n turns, area A and resistance R, is placed in a un...

    Text Solution

    |

  19. In the above problem. The plane of the coil is initially kept parallel...

    Text Solution

    |

  20. In the above question if the coil rotates with a constant angular velo...

    Text Solution

    |