Home
Class 12
PHYSICS
A rod of length l rotates with a small b...

A rod of length l rotates with a small but uniform angular velocity `omega` about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The potential difference between the centre of the rod and an end is

A

zero

B

`(1)/(2)omegaBl^(2)`

C

`omegaBl^(2)`

D

`2omegaBl^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NEET MOCK TEST 20

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NEET MOCK TEST 3

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

(a) A metal rod of length L rotates about an end with a uniform angular velocity omega . A uniform magnetic field B exists in the direction of the axis of rotation. Calculate the emf induced between the ends of the rod. Neglect the centripetal force acting on the free electrons as they move in circular paths. (b) A rod of length L rotates with a small but uniform angular velocity omega about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. Find the potential difference (i) between the centre of rod and one end and (ii) between the two ends of the rod.

A rod of length l rotates with a uniform angular velocity omega about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The potential difference between the two ends of the lrod is

A conducting rod of length 2l is rotating with constant angular speed w about its perpendicular bisector. A uniform magnetic field B exists parallel to the axis of rotation. The e.m.f. induced between two ends of the rod is

A conducting disc of radius r rotaes with a small but constant angular velocity omega about its axis. A uniform magnetic field B exists parallel to the axis of rotation. Find the motional emf between the centre and the periphery of the disc.

A conducting rod rotates with a constant angular velocity 'omega' about the axis which passes through point 'O' and perpendicular to its length . A uniform magnetic field 'B' exists parallel to the axis of the rotation . Then potential difference between the two ends of the rod is :-

A rod of length l is rotated with angular speed omega about an axis passing through the centre of rod and perpendicular to its length. A uniform magnetic field B is applied parallel to the axis of rotation, Potential difference developed between the ends of the rod is

A metal rod length l rotates about on end with a uniform angular velocity omega . A uniform magnetic field vecB exists in the direction of the axis of rotation. Calculate the emf induced between the ends of the rod. Neglect the centripetal force acting on the free electrons as they money in circular paths.

A metal rod of length 2 m is rotating with an angular velocity of 100 rad//sec in a plane perpendicular to a uniform magnetic field of 0.3 T . The potential difference between the ends of the rod is

NTA MOCK TESTS-NEET MOCK TEST 21-PHYSICS
  1. When a ray is refracted from one medium into another, the wavelegths c...

    Text Solution

    |

  2. A 100 V a.c. source of frequency 500 Hz is connected to a LCR circuit ...

    Text Solution

    |

  3. A rod of length l rotates with a small but uniform angular velocity om...

    Text Solution

    |

  4. In the figure, which of the diode is in reverse bias

    Text Solution

    |

  5. In the figure shown below each battery has emf = 5 V. Then the magneti...

    Text Solution

    |

  6. Two long parallel wires are 30 cm apart carrying currents 10 A and 15 ...

    Text Solution

    |

  7. The resistance of a moving coil galvanometer is 20Omega. It requires 0...

    Text Solution

    |

  8. Consider the situation shown in the figure. The wire "AB" is sliding o...

    Text Solution

    |

  9. The coefficient of friction between two surface is 0.2. The maximum an...

    Text Solution

    |

  10. The ratio of thermal conductivity of two rods of different material is...

    Text Solution

    |

  11. A dielectric slab is inserted between the plates of an isolated capaci...

    Text Solution

    |

  12. The effective capacitance of two capacitors of capacitances C(1) and C...

    Text Solution

    |

  13. A particale moves under the effect of a force F = Cs from x = 0 to x =...

    Text Solution

    |

  14. Root mean square speed of an ideal gas at 300 K is 500 m/s. Temperatur...

    Text Solution

    |

  15. When a laser beam returns after reflection from an aeroplane, the obse...

    Text Solution

    |

  16. A ring consisting of two parts ADB and ACB of same conductivity k carr...

    Text Solution

    |

  17. The period of oscillation of a simple pendulum of length (L) suspended...

    Text Solution

    |

  18. Potential energy of a 3kg body at the surface of a planet is -54 J, th...

    Text Solution

    |

  19. A projectile is fired vertically upwards from the surface of the earth...

    Text Solution

    |

  20. A uniform bar of length 6a and mass 8 m lies on a smooth horizontal ta...

    Text Solution

    |