Home
Class 12
PHYSICS
A 2.0V potentiometer is used to determin...

A 2.0V potentiometer is used to determine the internal resistance ofa I.SY cell. The balance point of the cell in the open circuit is obtained at 75cm. When· a resistor of `10Omega` is connected across the cell, the balance point shifts to 60cm. The internal resistance of the cell is:

A

`1.5Omega`

B

`2.5Omega`

C

`3.5Omega`

D

`4.5Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CAPACITANCE

    PHYSICS GALAXY - ASHISH ARORA|Exercise UNSOLVED NUMERICAL PROBLEMS|40 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs|33 Videos

Similar Questions

Explore conceptually related problems

A 2.0 V potentiometer is used to determine the internal resistance of 1.5 V cell. The balance point of the cell in the circuit is 75 cm . When a resistor of 10Omega is connected across cel, the balance point sifts to 60 cm . The internal resistance of the cell is

3V poteniometer used for the determination of internal resistance of a 2.4V cell. The balanced point of the cell in open circuit is 75.8cm. When a resistor of 10.2Omega is used in the external circuit of the cell the balance point shifts to 68.3cm length of the potentiometer wire. The internal resistance of the cell is

Figure 6.13 shows a 2.0 V potentiometer used for the determination of internal resistance of a 1.5 V cell. The balance point of the cell in open circuit is 76.3 cm . Whan a resistor of 9.5 Omega is used in the external circuit of the cell, the balance point shifts to 64.8 cm , length of the potentiometer. Dentermine the internal resistance of the cell.

In a potentiometer arrangement for determining the emf of cell, the balance point of the cell in open circuit is 350 cm. When a resistance of 9 Omega is used in the external circuit of cell , the balance point shifts to 300 cm. Determine the internal resistance of the cell.

The emf of cell is balanced by balancing length 450 cm . When the resistance of 10 Omega is connected across the cell, balancing length changes by 100 cm. The internal resistance of a cell is

The e.m.f. of a standard cell balances across 150 cm length of a wire of potentiometer. When a resistance of 2Omega is connected as a shunt with the cell, the balance point is obtained at 100cm . The internal resistance of the cell is

PHYSICS GALAXY - ASHISH ARORA-CURRENT ELECTRICITY-All Questions
  1. If 2% of the main current is to be passed through the galvanometer of ...

    Text Solution

    |

  2. If the length of the filament ofa heater is reduced by 10% the power o...

    Text Solution

    |

  3. A 2.0V potentiometer is used to determine the internal resistance ofa ...

    Text Solution

    |

  4. The drift velocity of free electrons in a conductor is v, when a curre...

    Text Solution

    |

  5. A galvanometer is to be converted into an ammeter or voltmeter. In whi...

    Text Solution

    |

  6. In the given circuit current flowing through the resistance 20Omega is...

    Text Solution

    |

  7. Two batteries one of the emf3V, internal resistance In and the other o...

    Text Solution

    |

  8. A part of a circuit is shown in figure. Here reading of ammeter is 5A ...

    Text Solution

    |

  9. Two resistances are connected in two gaps of a metre bridge. The balan...

    Text Solution

    |

  10. In the given circuit, the voltmeter reads SV. The resistance of the vo...

    Text Solution

    |

  11. The wire of potentiometer has resistance 4Omega and length Im. It is c...

    Text Solution

    |

  12. Two identical batteries, each of EMF 2V and internal resistance r =1Om...

    Text Solution

    |

  13. The potential difference between points A and Bin the circuit shown in...

    Text Solution

    |

  14. Find the ratio ofcurrents as measured by ammeter in two cases when the...

    Text Solution

    |

  15. A galvanometer has a resistance of 3663Omega. A shunt Sis connected a...

    Text Solution

    |

  16. Each resistor shown in figure is an infinite network of resistance1Ome...

    Text Solution

    |

  17. Each wire shown in figure-3.321 is ofresistance R. The equivalent resi...

    Text Solution

    |

  18. Two cells A andB ofEMF 1.3V and 1.5V respectively are arranged as show...

    Text Solution

    |

  19. A students connects an ammeter A and a voltmeter V to measure a resist...

    Text Solution

    |

  20. In the circuit shown, the voltage drop across the 15Omega resistor is ...

    Text Solution

    |