Home
Class 12
PHYSICS
Two idential conductors P and Q are plac...

Two idential conductors `P` and `Q` are placed on two frictionless rails `R` and `S` in a uniform magnetic field directed into the plane. If `P` is moved in the direction shown in figure with a constant speed, then rod `Q`

A

will be attracted towards `P`

B

will be repelled away from `P`

C

will remain stationary

D

may be repelled away orattracted towards `P`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRO MAGNETIC INDUCTION

    NARAYNA|Exercise Assertion & Reason|11 Videos

  • ELECTRO MAGNETIC INDUCTION

    NARAYNA|Exercise Level -I (C.W)|26 Videos

  • ELECTRO MAGNETIC INDUCTION

    NARAYNA|Exercise Level-II (H.W)|23 Videos

  • ELECTRIC CHARGES AND FIELDS

    NARAYNA|Exercise EXERCISE -4|43 Videos

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise LEVEL-II(H.W)|14 Videos

Similar Questions

Explore conceptually related problems

The counductor AD moves to the right in a uniform magnetic field directed into the plane of the paper.

A thin, uniform rod with negligible mass and length 0.200m is attached to the floor by a frictionless hinge at point P (as shown in fig) A horizontal spring with force constant k=4.80Nm^-1 connects the other end of the rod to a vertical wall. The rod to a vertical wall. The rod is in a uniform magnetic field B=0.340T directed into the plane of the figure. There is current I=6.50 A in the rod, in the direction shown. When the rod is in equilibrium and makes an angle of 53.0^@ with the floor, is the spring stretched or compressed?

A thin, uniform rod with negligible mass and length 0.200m is attached to the floor by a frictionless hinge at point P (as shown in fig) A horizontal spring with force constant k=4.80Nm^-1 connects the other end of the rod to a vertical wall. The rod to a vertical wall. The rod is in a uniform magnetic field B=0.340T directed into the plane of the figure. There is current I=6.50 A in the rod, in the direction shown. Calculate the torque due to the magnetic force on the rod, for an axis at P.

A conducting bar of mass m and length l moves on two frictionless parallel rails in the presence of a constant uniform magnetic field of magnitude B directed into the page as shown in the figure . The bar is given an initial velocity v_(0) towards the right at t = 0. Then the

The loop shown moves with a velocity v in a uniform magnetic field of magnitude B , directed into the paper. The potential differene between point P and Q is e. Then

A straight horizontal conductor PQ of length l, and mass_ m slides down on two smooth conducting fixed parallel rails, set inclined at an angle 9 to the horizontal as shown in figure-5.30. The top end of the bar are connected with a capacitor of capacitance C. The system is placed in a uniform magnetic field, in the direction perpendicular to the inclined plane formed by the rails as shown in figure. If the resistance of the bars and the sliding conductor are negligible calculate the acceleration of sliding conductor as a function of time ifit is released from rest at t= 0

a copper rod of mass m slides under gravity on two smooth parallel rails with separation I and set at an angle of theta with the horiziontal at the bottom rails are joined by resistance R. There is a uniform magnetic field B normal to the plane of the rails as shown in the figure The terminal speed of the copper rod is :

A conducting rod of length l slides at constant velocity v on two parallel conducting rails, placed in a uniform and constant magnetic field B perpendicular to the plane of the rails as shown in Fig.3.49. A resistance R is connected between the two ends of the rails. (a) Idenify the cause which produces change in magnetic flux. (b) Identify the direction of current in the loop. ( c) Determine the emf induced in the loop. (d) Compute the electric power dissipated in the resistor. (e) Calcualte the mechenical power required to pull the rod at a cinstant velovity.

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.

NARAYNA-ELECTRO MAGNETIC INDUCTION-C.U.Q 1
  1. AB and CD are fixed conducting smooth rails placed in a vertical palne...

    Text Solution

    |

  2. Three idential coils A,B and C carrying currents are placed coaxially ...

    Text Solution

    |

  3. Two idential conductors P and Q are placed on two frictionless rails R...

    Text Solution

    |

  4. An inductance stroes energy in the

    Text Solution

    |

  5. If 'N' is the number of turns in a coil, the value of self inductance ...

    Text Solution

    |

  6. A series combination of L and R is connected to a battery of emf E hav...

    Text Solution

    |

  7. Two coils of self-inductance L(1) and L(2) are placed closed to each o...

    Text Solution

    |

  8. The coefficient of self inductance and the coefficient of mutual induc...

    Text Solution

    |

  9. The mutual inductance between a pair of coils each of 'N' turns is 'M'...

    Text Solution

    |

  10. A circuit contains two inductors of self-inductance L(1) and L(2) in s...

    Text Solution

    |

  11. In the circuit of Fig. (1) and (2) are ammeters. Just after the key K ...

    Text Solution

    |

  12. A pure inductor L, a capactior C and a resistance R are connected acro...

    Text Solution

    |

  13. In the circuit shown in Fig. A conducting wire HE is moved with a cons...

    Text Solution

    |

  14. In which of the following cases the emf is induced due to time varying...

    Text Solution

    |

  15. A closed conducting ring is placed in between two bar magnets as shown...

    Text Solution

    |

  16. Two identical circular loops of metal wire are lying on a table withou...

    Text Solution

    |

  17. A metallic square loop ABCD is moving in its own plane with velocity v...

    Text Solution

    |

  18. Two circular coils can be arranged in any of the three situation shown...

    Text Solution

    |

  19. As shown in the figure, P and Q are two coaxial conducting loops separ...

    Text Solution

    |

  20. The variation of induced emf (E) with time (t) in a coil if a short ba...

    Text Solution

    |