Home
Class 12
PHYSICS
In the circuit shown in figure AB is a u...

In the circuit shown in figure AB is a uniform wire of length `L = 5m`. It has a resistance of `2 Omega//m`. When `AC = 2.0 m`, it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf `E_(1)`.

Text Solution

Verified by Experts

The correct Answer is:
150 V
Promotional Banner

Topper's Solved these Questions

  • CAPACITOR

    ARIHANT|Exercise Capacitor|50 Videos

  • ELECTROMAGNETIC INDUCTION

    ARIHANT|Exercise Level 3|12 Videos

Similar Questions

Explore conceptually related problems

In the circuit shown in figure-3.388, each ammeter has coil resistance 2 Omega , find reading of the two ammeters.

A simple potentiometer circuit is shown in the figure. The internal resistance of 5 V battery is 0.6 Omega wire of length 4 m and resistance 0.5 Omega per meter. The length AB for which galvanometer shows zero deflection is

In figure AB is a potentiometer wire of length 10 m and resistance 1Omega . The balancing length for 2V potential drop is 18 m. The e.m.f. of the battery E is

A uniform wire AB of length 1 m, an unknown resistance X and a resistance of 12 Omega are connected to a battery and a galvanometer G as shown in the figure. The galvanometer shows no deflection when AJ=60 cm. What is the value of X (in ohm) ?

For the potentiometer arrangement shown in the figure, length of wire AB is 100 cm and its resistance is 9 Omega . Find the length AC for which the galvanometer G will show zero deflection.

In the potentiometer circuit shown in the figure the internal resistance of the 6V battery is 1Omega and length of the wire AB is 100 cm . When AD = 60 cm , the galvanometer shows no deflection . The EMF of the cell C is (the resistance of the wire AB is 2Omega )

A nichrome wire of length 100 cm and area of cross-section 0.5 m m^(2) has a resistance of 2.2 Omega . The resistivity of nichrome is

A secondary cell of emf 2 V and finternal resistance 0.1 Omega is connected to the ends of a uniform wire of length 1 m and resistacne 12 Omega .A primary cell of emf 1.5 V in series with a galvancometer is connected to two points on the wire. If the galvanometer shows no deflection find the distance between the points.

A simple potentiometer circuit is shown in the figure. The internal resistance of the battery is negligible. AB is a uniform wire of length 100cm and resistance 2Omega What would be the length AC for zero galvanometer deflection (in mm)?

ARIHANT-CURRENT ELECTRICITY-Current Electricity
  1. A 10 wire potentiometer has first five wires of cross sectional radius...

    Text Solution

    |

  2. A water heater has a well insulated vertical cylindrical container of ...

    Text Solution

    |

  3. In the circuit shown in figure AB is a uniform wire of length L = 5m. ...

    Text Solution

    |

  4. In the circuit shown, after the switch is shifted to position 2 the he...

    Text Solution

    |

  5. In the circuit shown in figure B(1), B(2) and B(3) are identical bulbs...

    Text Solution

    |

  6. When the applied potential difference across a circuit element is incr...

    Text Solution

    |

  7. In the circuit shown the switch is closed at time t = 0. Plot the foll...

    Text Solution

    |

  8. A capacitor having initial change q(0) and capacitance C is connected ...

    Text Solution

    |

  9. A parallel plate capacitor has plate area A and separation between the...

    Text Solution

    |

  10. Consider the circuit shown in the figure. The switch has been in posit...

    Text Solution

    |

  11. An electric bulb has a solid cylindrical filament of length l and radi...

    Text Solution

    |

  12. A battery of emf V and internal resistance r is connected to N identic...

    Text Solution

    |

  13. A copper wire of length 5 cm carries a current of density j = 1 A (mm)...

    Text Solution

    |

  14. A conducting plate of thickness t is in the shape of an arc. Its inner...

    Text Solution

    |

  15. A conductor having resistivity rho is bent in the shape of a half cyli...

    Text Solution

    |

  16. A metallic wire has variable cross sectional area. Cross sectional are...

    Text Solution

    |

  17. A tungsten filament bulb is connected to a variable voltage supply. Th...

    Text Solution

    |

  18. The figure shows the tungsten filament with constant diameter except a...

    Text Solution

    |

  19. Two cylindrical rods, of different material, are joined as shown. The ...

    Text Solution

    |

  20. The current (I) – voltage (V) characteristic of three devices A, B and...

    Text Solution

    |