Home
Class 12
PHYSICS
In the following diagram, the deflection...

In the following diagram, the deflection in galvanometer in a potentiometer circuit is zero, then

A

`E_(1)gtE_(2)`

B

`E_(2)gtE_(1)`

C

`E_(1)=E_(2)`

D

`E_(1)+E_(2)=E`

Text Solution

Verified by Experts

The correct Answer is:
2
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    ALLEN|Exercise EXERCISE-V B|20 Videos
  • CIRCULAR MOTION

    ALLEN|Exercise EXERCISE (J-A)|6 Videos
  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

In the following diagram the deflection in the galvanometer in a potentiometer circuit is zero. Then:-

The deflection in a moving coil galvanometer is

For the following diagram the galvanometer shows zero deflection then what is the value of R?

In the following circuit diagram. The galvanometer reading is zero. If the inter nal resistance of cells are negligible then what is the value of X?

The resistances P,Q,R and S in the bridge shown are adjusted such that the deflection in the galvanometer G is zero when both the keys K_(1) and K_(2) are inserted. The galvanometer will show a momentary deflection if

The galvanometer deflection , when key K_(1) is closed but K_(2) is open equals theta_(0) (see figure ) On closing k_(2) also and adjusting R_(2) to 5Omega , the deflection in galvanometer becomes (theta_(0))/(5) the resistnce of the galvanometer is then , given by [Neglect the internal resistance of battery]:

Deflection of galvanometer in the circuit is 71 divisions. A shunt of 15Omega is connected parallel to galvanometer and value of R is adjusted such that main current ramains the same. If the deflection in the galvanometer falls to 15 divisions then the resistance G of galvanometer in (in ohm)

In the following circuit a 10 m long potentiometer wire with resistance 1.2 ohm/m, a resistance and an accumulator of emf 2V are connected in series. When the emf of thermocouple is 2.4 mV then the deflection in galvanometer is zero. The current supplied by the accumulator will be:

Which of the following statements is/are correct for potentiometer circuit ?

In the following circuit diagram the value of resistance X for the potential difference between B and D is zero:-

ALLEN-CURRENT ELECTRICITY-EX.II
  1. The following diagram shows the circuit for the comparision of e.m.f. ...

    Text Solution

    |

  2. In the following circuit the reading of the voltmeter will be:-

    Text Solution

    |

  3. In the following diagram, the deflection in galvanometer in a potentio...

    Text Solution

    |

  4. In the circuit shown the resistance of voltmeter is 10000 ohm and that...

    Text Solution

    |

  5. Value of Current i in the following circuit is:-

    Text Solution

    |

  6. The resistance of galvanometer is g ohm and the range is 1 volt. The v...

    Text Solution

    |

  7. The total resistance b etween x and y in ohm is:-

    Text Solution

    |

  8. In an experiment to measure the internal resistance of a cell by a pot...

    Text Solution

    |

  9. There are n similar conductors each of resistance R . The resultant re...

    Text Solution

    |

  10. A galvanometer of resistance 100Omega gives full scale deflection for ...

    Text Solution

    |

  11. If 2% of the main current is to be passed through the galvanometer of ...

    Text Solution

    |

  12. In the following circuit diagram the value of resistance X for the pot...

    Text Solution

    |

  13. The sensitivity of a potentiometer can be increased by

    Text Solution

    |

  14. A potential gradient is created in the wire by a standard cell for the...

    Text Solution

    |

  15. A voltmeter having a resistance of 998 is connected to a cell of emf 2...

    Text Solution

    |

  16. Ratio of amplitude for two wave is 10:11 .Find the ratio of intensity?

    Text Solution

    |

  17. A cell of e.m.f. 2V and negligible internal resistance is connected to...

    Text Solution

    |

  18. Potentiometer wire length is 10m, having a total resistance of 10Omega...

    Text Solution

    |

  19. P,Q is a uniform wire of resistance 2000Omega and M is the md point of...

    Text Solution

    |

  20. A student connects a voltmeters, ammeter and resistance according to t...

    Text Solution

    |