Home
Class 12
PHYSICS
Consider the situation shown in figure.T...

Consider the situation shown in figure.The wire `CD` has a negligible resistance and is made to slide on the three rails with a constant speed of `50 cm//s`.Find the current in the `10 Omega` resistor when the switch `S` is thrown to (a) the middle rail (b)bottom rails.(Neglect resistance of rails)

Text Solution

Verified by Experts

The correct Answer is:
A.).1mA b.).2mA
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-1 PART 2|51 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-2 PART 1|15 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Problem|12 Videos

  • ELECTRODYNAMICS

    RESONANCE|Exercise Advanced level problems|31 Videos

  • ELECTROSTATICS

    RESONANCE|Exercise HLP|39 Videos

Similar Questions

Explore conceptually related problems

Consider the circuit shown in figure.Find the current through the 10(Omega) resistor when the switch S is (a)open (b)closed .

Consider the circuit shown in figure. Find the current through the 10Omega resistor when the switch S is (a) opened (b) closed.

Consider the situation shown Fig. There present a magnetic field B = 1 T which is perpendicular to plane of paper. The wire P_(2), Q_(2) are made to slide on the rails with the same speed 5 cm //s . Find the electric current in the 19 (Omega) resistance if Both the wires move towards right

Consider the situation shown in the figure. The wire Ab is sliding on the fixed rails with a constant velocity. If the wire AB is replaced by semicircular wire, the magnitude of the induced current will

In the figure shown , the wires P_(1)Q_(1) and P_(2)Q_(2) are made to slide on the rails with same speed of 5 cm s^(-1) . In this region a magnetic field of 1 T exists. The electric current in the 9 Omega resistance is :

Consider the situation shown in the figure. The wire PQ has mass m , resistance r and can slide 0n the smooth, horizontal parallel rails separated by a distance l . The resistance of the rais is negiligible. A uniform magnetic field B exists in the reactangular region and a resistance R connects the rail outside the field region. At t=0 , the wire PQ is pushed toward right with a speed v_(0) . Find (a) the current in the loop at an instant when the speed of the wire PQ is v (b) the acceleration of the wire as this instant (c) the velocity v as a function of x (d) the maximum distance the wire will move (e) the velocity as a function of time

In the diagram shown, the wires P_1Q_1 and P_2Q_2 each of length 40cm are made to slide on the rails with same speed of 5m//s . In this region a magnetic field of 1T exists. The electric current in 9kOmega resistor is

The given potentiometer has its wire of resistance 10 Omega When the sliding contact is in the middle of the potentiometer wire, the potential drop across 2 Omega resistor is :

A wire of length l , mass m and resistance R slides without any friction down the parallel conducting rails of negligible resistance . The rails are connected to each other at the bottom by a resistanceless rail parallel to the wire so that the wire and the rails form a closed rectangualr conducting loop. The plane of the rails makes an angle theta with the horizontal and a uniform vertical magnetic field of the inducetion B exists throughout the rregion. Find the steady state velocity of the wire.

RESONANCE-ELECTROMAGNETIC INDUCTION-Exercis-1
  1. A wire bent as a parabola y=ax^(2) is located in a uniformed magnetic ...

    Text Solution

    |

  2. A square frame of wire abcd of side 1 m has a total resistance of 4 Om...

    Text Solution

    |

  3. Consider the situation shown in figure.The wire CD has a negligible re...

    Text Solution

    |

  4. Figure showns a smooth pair of thick metallic rails connected across a...

    Text Solution

    |

  5. Figure shows a wire of resistance R sliding on two parallel, conductin...

    Text Solution

    |

  6. A long U-shaped wire of width l placed in a perpendicular uniform and ...

    Text Solution

    |

  7. Consider the situation of the pervious problem. (a) Calculate the forc...

    Text Solution

    |

  8. A wire of mass m and length l can slide freely on a pair of fixed, smo...

    Text Solution

    |

  9. Figure showns a fixed square frame of wire having a total resistance r...

    Text Solution

    |

  10. The magnetic field in a region is given by vecB=B(0)/Lxhatk where L is...

    Text Solution

    |

  11. A straight wire with a resistance of r per unit length is bent to form...

    Text Solution

    |

  12. A metal rod of length 15xx10^(-2)m rotates about an axis passing throu...

    Text Solution

    |

  13. In the figure there are two identical conducting rods each of length a...

    Text Solution

    |

  14. A bicycle is resting on its stand in the east-west direction and the r...

    Text Solution

    |

  15. A simple pendulum with a bob of mass m and a conducting wire of length...

    Text Solution

    |

  16. A conducting disc of radius R is rolling without sliding on a horizont...

    Text Solution

    |

  17. A closed coil having 50 turns is rotated in a uniform magnetic field B...

    Text Solution

    |

  18. A circular loop of radius 1m is placed in a varying magnetic field giv...

    Text Solution

    |

  19. The current in an ideal, long solenoid is varies at a uniform rate of...

    Text Solution

    |

  20. A magnetic field induction is changing in magnitude at a constant rate...

    Text Solution

    |