Home
Class 12
PHYSICS
Shows rod PQ of mass m and resistance r ...

Shows rod `PQ` of mass `m` and resistance `r` moving on two fixed, resistanceless, smooth conducting rails (closed on both sides by resistances `R_(1) and R_(2)`). Find the current in the rod (at the instant its velocity is `v`).

Text Solution

Verified by Experts

The given circuit is equivalent to the following diagram:

`I =(Blv)/(r +(R_(1)R_(2))/(R_(1) + R_(2))`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS|Exercise Exercises Subjective|13 Videos

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS|Exercise Exercises Single Correct|79 Videos

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS|Exercise Exercise 3.1|15 Videos

  • ELECTROMAGENTIC INDUCTION

    CENGAGE PHYSICS|Exercise QUESTION BANK|40 Videos

  • ELECTRON,PHONTS,PHOTOELECTRIC EFFECT & X-RAYS

    CENGAGE PHYSICS|Exercise dpp 3.3|15 Videos

Similar Questions

Explore conceptually related problems

A rod of mass m and resistance r is placed on fixed, resistanceless, smooth conducting rails (closed by a resistance R ) and it is projected with an initial velocity u .Find its velocity as a function of time.

A conducting rod of mass m and length l is free to move without friction on two parallel long conducting rails, as shown below. There is a resistance R across the rails. In the entire space around, there is a uniform magnetic field B normal to the plane of the rod and rails. The rod is given an impulsive velocity v_(0) - Finally, the initial energy (1)/(2) mv_(0)^(2)

Two parallel vertical metallic bars X X^(1) and Y Y^(1) , of negligible resistance and separated by a length 'l' , are as shown in Fig. The ends of the bars are joined by resistance R_(1) and R_(2) . A uniform magnetic field of induction B exsits in space normal to the plane of the bars. A horizontal metallic rod PQ of mass m starts falling vertically, making contact with the bars. It is oberved that in the steady state the powers dissipated in the resistance R_(1) and R_(2) and the terminal velocity attained by the rod PQ .

Two ideal batteries of emf V_(1) and V_(2) and three resistance R_(1)R_(2) and R_(3) are connected The current in resistance R_(2) would be zero if

A rod having length l and resistance R is moving with velocity v on a pi shape conductor. Find the current in the rod.

Shows a rod of length l and resistance r moving on two rails shorted by a resistance R . A uniform magnetic field B is present normal to the plane of rod and rails. Show the electrical equivalence of each branch.

A rod of mass m and resistnce R sldes on frictionless and resistanceless rails a distance l a part thast innclude a source of emf E_0 (see figure). The rod is initially at rest. Find the expression for the a. Velocity of the rod v(t). b. current in the loop i(t).

A conducting rod PQ of mass m and length l is placed on two long parallel (smooth and conducting) rails connected to a capacitor as shown. The rod PQ is connected to a non conducting spring of spring constant k , which is initially in relaxed state. The entire arrangement is placed in a magnetic feild perpendicular to the plane of figure. Neglect the resistance of the rails and rod. Now, the rod is imparted a velocity v_(0) towards right, then acceleration of the rod as a function of its displacement x given by

CENGAGE PHYSICS-ELECTROMAGNETIC INDUCTION-Exercise 3.2
  1. Shows a rod of length l and resistance r moving on two rails shorted b...

    Text Solution

    |

  2. A rod of length l is kept parallel to a long wire carrying constant cu...

    Text Solution

    |

  3. a rectangular loop, as shown in Fig. 3.66, moves away from an infinite...

    Text Solution

    |

  4. A rod of length l is placed perpendicular to a long wire carrying curr...

    Text Solution

    |

  5. A rectangular loop is moving parallel to a long wire carrying current ...

    Text Solution

    |

  6. Rod PQ of length 2l is rotating about one end P in a uniform magnetic ...

    Text Solution

    |

  7. Rod PQ of length 2l is rotating about its midpoint C in a uniform magn...

    Text Solution

    |

  8. A rod of length L and resistance r rotates about one end as shown in ....

    Text Solution

    |

  9. Solve problem 15 if the length of rod is 2L and resistance 2r and it i...

    Text Solution

    |

  10. A rod of length l is rotating with an angular speed omega about one of...

    Text Solution

    |

  11. A rod of length l is rotating with an angular speed omega about one of...

    Text Solution

    |

  12. Shows rod PQ of mass m and resistance r moving on two fixed, resistanc...

    Text Solution

    |

  13. A rod PQ of length l is rotating about end P, with an angular velocity...

    Text Solution

    |

  14. A ring rotates with angular velocity omega about an axis perpendicula ...

    Text Solution

    |

  15. A ring rotates with angular velocity omega about an axis in the plane ...

    Text Solution

    |

  16. a conducting rod of length L = 30.0 cm movies in a magnetic field vec(...

    Text Solution

    |

  17. The cube shown in, 50.0 cm on a side, is in a uniform magnetic field o...

    Text Solution

    |

  18. A rod of mass m, length l and resistance R is sliding down on a smooth...

    Text Solution

    |

  19. A conducting rod AC of length 4l is rotated about point O in a uniform...

    Text Solution

    |

  20. Consider the sliding wire circuit shown in . The wire slides at const...

    Text Solution

    |