Home
Class 12
PHYSICS
The length of the potentiometer wire is ...

The length of the potentiometer wire is kept larger so that the value of potential gradient may

A

increase

B

Decrease

C

Remain uniform all over the length of its wire

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B

Potential gradient `=(V)/(l)`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|23 Videos
  • CURRENT ELECTRICITY

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|23 Videos
  • ALTERNATING CURRENT

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |8 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    PHYSICS WALLAH|Exercise Neet past 5 years questions|16 Videos

Similar Questions

Explore conceptually related problems

Length of a potentiometer wire is kept long and uniform to ahcieve:-

A potentiometer wire is connectd across the ideal battery now, the radius of potentiometer wire is doubled without changing its length. The values of potential gradient

The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire is increased by 1m, the value of potential gradient in volt/m will be (potential difference across potentiometer wire remain same)

A current of 0.01 A flows through a potentiometer wire of cross section area 10^(-6)m^(2) . If the specific resistance of the potentiometer wire is 10^(-7) ohm-m, then the potential gradient will be

A cell of negligible internal resistance is connected to a potentiometer wire and potential gradient is found. Keeping the length as constant, if the radius of potentiometer wire is increased four times, the potential gradient will become (no series resistance in primary)

A 2 V battery, a 990Omega resistor and a potentiometer of 2 m length, all are connected in series of the resistance of potentiometer wire is 10Omega , then the potential gradient of the potentiometer wire is

A 2 volt battery, a 15 Omega resistor and a potentiometer of 100 cm length, all are connected in series. If the resistance resistance of potentiometer wire is 5 Omega , then the potential gradient of the potentiometer wire is

If the length of a potentiometer wire is increased by keeping constant potential difference across the wire, then

As is the cross sectional area and rho is the specific resistance of a potentiometer wire. If I is the current passing through the potentiometer wire, then the potential gradient along the length of the wire is given by

In potentiometer the potential gradient is –

PHYSICS WALLAH-CURRENT ELECTRICITY-Level-2
  1. One filament takes 10min to heat a kettle and another takes 15 min. If...

    Text Solution

    |

  2. If two wires having resistance R and 2 R . Both joined in series and i...

    Text Solution

    |

  3. The length of the potentiometer wire is kept larger so that the value ...

    Text Solution

    |

  4. A galvanometer of resistance 36 Omega is changed into an ammeter by us...

    Text Solution

    |

  5. Working of potentiometer is based on

    Text Solution

    |

  6. A wire of resistance R is elongated n-fold to make a new uniform wire....

    Text Solution

    |

  7. A 10 m long wire ofresistance 20 Omega is connected in series with bat...

    Text Solution

    |

  8. The effective resistance across the point A & B is

    Text Solution

    |

  9. A battery having e.m.f. 5 V and internal resistance 0.5 Omega is conne...

    Text Solution

    |

  10. A cell of e.mf. E and internal resistance r is connected in series wit...

    Text Solution

    |

  11. In a ammeter 0.2% of main current passes through the galvanometer. If ...

    Text Solution

    |

  12. Three voltmeters A, B and C having resistances R, 1.5 R and 3 R respec...

    Text Solution

    |

  13. In the circuit shown, the ratio (I(1))/(I(2)) is equal to

    Text Solution

    |

  14. A resistance wire has a resistance R. Half of this wire is stretched t...

    Text Solution

    |

  15. Consider the figure, cross-sectional area of consider at A and B is 2...

    Text Solution

    |

  16. The time constant of the circuit shown in the figure is

    Text Solution

    |

  17. A part of a circuit is shown in figure V(R)-V(C ) is equal to 12 V. I(...

    Text Solution

    |

  18. Two identical calls send the same current in 2 Omega resistance, wheth...

    Text Solution

    |

  19. The potentiometer wire AB shown in figure is 50cm long.When AD=30cm, n...

    Text Solution

    |

  20. A and B are two points on a uniform ring of resistance 15Omega. The lt...

    Text Solution

    |