Home
Class 12
PHYSICS
A cell can be balanced against 110 cm an...

A cell can be balanced against `110 cm` and `100 cm` of potentiometer wire, respectively with and without being short circuited through a resistance of `10 Omega`. Its internal resistance is

A

`1.0 Omega`

B

`0. 5 Omega`

C

`2.0 Omega`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -3 SECTION -B (PREVIOUS YEAR PROBLEMS JEE MAIN)|42 Videos
  • CURRENT ELECTRICITY

    MOTION|Exercise EXAMPLE|79 Videos
  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -2 (OBJECTIVE PROBLEMS NEET)|41 Videos
  • CONSTRAINED MOTION

    MOTION|Exercise EXAMPLES|12 Videos
  • ELASTICITY

    MOTION|Exercise EXERCISE -3|60 Videos

Similar Questions

Explore conceptually related problems

A cll balances against a length of 150 cm on a potentiometer wire when it is shunted by a resistance of 5 Omega . But when it is shunted by a resistance of 10 Omega , the balancing length increases by 25 cm. What is the balancing length when the cell is in an open circuit ?

A Daniel cell is balanced on 125 cm length of a potentiometer wire. Now the cells is short-circuited by a resistance 2 ohm and the balance is obtained at 100 cm . The internal resistance of the Dainel cell is

For a cell of e.m.f. 2 V , a balance is obtained for 50 cm of the potentiometer wire. If the cell is shunted by a 2Omega resistor and the balance is obtained across 40 cm of the wire, then the internal resistance of the cell is

In an experiment to find the internal resistance of a cell by a potentiometer, a balance was obtained for 50 cm length of the potentiometer wire, with a cell of e.m.f. 2V. When the cell was shunted by a resistance of 2 Omega , the balancing length of the potentiometer wire was 40 cm. What was the internal resistance of the cell ?

A cell of e.m.f. 1.2 V is balanced by 150 cm of potentiometer wire. When the cell is shunted by a resistance of 4 Omega , the balancing length is reduced by 30 cm. What is the internal resistance of the cell ?

MOTION-CURRENT ELECTRICITY-EXERCISE -3 SECTION -A (PREVIOUS YEAR PROBLEMS NEET)
  1. In the circuit shown if a conducting wire is connected between points ...

    Text Solution

    |

  2. A wire of a certain material is stretched slowly by ten percent. Its n...

    Text Solution

    |

  3. A cell can be balanced against 110 cm and 100 cm of potentiometer wire...

    Text Solution

    |

  4. In the circuit shown, the current through the 4 Omega resistors is 1 a...

    Text Solution

    |

  5. A wire of resistance 12 Omega m^(-1) is bent to from a complete circle...

    Text Solution

    |

  6. See the electrical circuit shown in this figure. Which of the followin...

    Text Solution

    |

  7. A student measures the terminal potential difference (V) of a cell (of...

    Text Solution

    |

  8. A steady current is set up in a metalic wire of non- uniform cross-sec...

    Text Solution

    |

  9. Seven resistance are connected as shown in the firgure. The equivalent...

    Text Solution

    |

  10. Statement-I: The power delivered to a light bulb is more just after it...

    Text Solution

    |

  11. A student measures the terminal potential difference (V) of a cell (of...

    Text Solution

    |

  12. If voltage across a bulb rated 220 V – 100 W drops by 2.5% of its rate...

    Text Solution

    |

  13. The power dissipated in the circuit shown in the figure is 30 W. The v...

    Text Solution

    |

  14. A ring is made of a wire having a resistance R(0) = 12 Omega. Find the...

    Text Solution

    |

  15. 6Omega and 12Omega resistors are connected in parallel. This combinati...

    Text Solution

    |

  16. Charge passing through a conductor of cross-section area A=0.3 m^2 is...

    Text Solution

    |

  17. A cell having an emf E and internal resistance r is connected across a...

    Text Solution

    |

  18. In the circuit shown the cells A and B have negligible resistance. For...

    Text Solution

    |

  19. A current of 2 A flows through a 2 Omega resistor when connected acros...

    Text Solution

    |

  20. The resistance t R of a conductor varies with temperature t as shown ...

    Text Solution

    |