Home
Class 10
PHYSICS
A student while verifying Ohm's law calc...

A student while verifying Ohm's law calculated the value of resistance of the resistor for each set of observation .However, the values of resistance were slightly different from the actual value . Is his experiment wrong ? Justify your answer.

Text Solution

Verified by Experts

His experiment is correct since some of the current is utilized to overcome the resistance of the wires of the circuit and instruments like ammeter and voltmeter . Thus, the experimental values of resistance were different from the actual value of resistance.
Promotional Banner

Topper's Solved these Questions

  • X BOARDS

    X BOARDS|Exercise SET-I SECTION-A|1 Videos

  • X BOARDS

    X BOARDS|Exercise SET-I SECTION-B|1 Videos

  • X BOARDS

    X BOARDS|Exercise SET III (SECTION -C)|1 Videos

  • SAMPLE QUESTION PAPER

    X BOARDS|Exercise Section-B|11 Videos

Similar Questions

Explore conceptually related problems

The resultant resistance of two resistors when connected in series is 48 ohm.the ratio of their resistances is 3:1 the value of each resistance is

If all the resistors shown have the value 2 ohm each, the equivalent resistance over AB is

Suppose you have three resistor each of value (30 Omega) .List all the different resistances you can obtian using them.

Two students ‘X’ and ‘Y’ perform an experiment on potentiometer separately using the circuit given: Keeping other parameters unchanged, how will the position of the null point be affected it (i) X’ increases the value of resistance R in the set-up by keeping the key K_1 closed and the key K_2 open? (ii) Y’ decreases the value of resistance S in the set-up, while the key K_2 remain open and the key K_1 closed? Justify.

X BOARDS-X BOARDS-SECTION B
  1. Which is smaller, terminal-p.d. or e.m.f. of a cell and why ?

    Text Solution

    |

  2. When a ray of light passes thorugh a glass slab how many times does it...

    Text Solution

    |

  3. A student while verifying Ohm's law calculated the value of resistance...

    Text Solution

    |

  4. To find the image-distance for varying object-distances in case o fa c...

    Text Solution

    |

  5. Draw a labelled circuit diagram to study the dependence of current (I...

    Text Solution

    |

  6. Students were asked to observe the permanent slides showing different ...

    Text Solution

    |

  7. A 4 cm tall object is placed on the principal axis of a convex lens. T...

    Text Solution

    |

  8. In an experiment , to study the dependence of potential difference (V...

    Text Solution

    |

  9. Identify the observed various parts of temporary mount of well stained...

    Text Solution

    |

  10. A student focuses the image of a well illuminated distant object on a ...

    Text Solution

    |

  11. To study the dependence of potential difference (V) on current I acros...

    Text Solution

    |

  12. A student is viewing under a microscope a permanent slide showing var...

    Text Solution

    |

  13. An object of height 2.5 cm is placed at a distance of 15 cm from the o...

    Text Solution

    |

  14. Give any four precautions taken by a student to perform an experiment ...

    Text Solution

    |

  15. A student places a candle flame at a distance of about 60 cm from a co...

    Text Solution

    |

  16. (a) What is least count of voltmeter ? (b) In a voltmeter there are ...

    Text Solution

    |

  17. A student focuses the image of a candle flame, placed at about 2 m fro...

    Text Solution

    |

  18. While traching the path of a ray of light passing through a rectangula...

    Text Solution

    |

  19. Draw a labelled ray diagram for the formation of image by a convex len...

    Text Solution

    |

  20. You have following material : An ammeter ( 0-1A0 ,a voltmeter ( 0-3V...

    Text Solution

    |