Home
Class 12
PHYSICS
A current of I mA is flowing through a r...

A current of` I mA `is flowing through a resistance of `1000 Omega`. To measure the potential difference across it, a voltmeter should be used whose resistance is

A

`1000 Omega`

B

`100 Omega`

C

very large as compared to `10^(3)Omega`

D

`zero Omega`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES ,THERMODYNAMICS AND RADIATION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 9|30 Videos
  • MAGNETISM

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|15 Videos

Similar Questions

Explore conceptually related problems

10^(-3) amp is flowing through a resistance of 1000 Omega . To measure the correct potential difference, the voltmeter is to be used to which the resistance should be

If a current of 3 A flows through a wire of resistance 8 ohms, calculate the potential difference applied across its ends.

A current of 0.2 A flows through a conductor of resistance 4.5 Omega . Calculate the potential difference at the ends of the conductor.

A current of 2.34 A flows in resistance of 11. 111111Omega The potential difference across the given resistance with due regard for the significant figure is

The battery of EMF 5V and internal resistance 20Omega is connected with a resistance R_(1) = 50Omega and a resistance . A voltmeter of resistance 1000Omega is used to measure the potential difference across R1 .What percentage error is made in the reading.

MARVEL PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-MCQ
  1. A galvanometer has a current range of 15 mA and a voltage range of 0.7...

    Text Solution

    |

  2. The deflection in a moving coil galvanometer is reduced to half, when ...

    Text Solution

    |

  3. A current of I mA is flowing through a resistance of 1000 Omega. To me...

    Text Solution

    |

  4. There are 3 voltmeters A,B,C having the same range but their resistanc...

    Text Solution

    |

  5. A milliammeter of range 0 to 25 mA and a range of 0 to 25 V. The resis...

    Text Solution

    |

  6. In an ammeter, 4% of the total current is passing through the galvanom...

    Text Solution

    |

  7. The range of an ammeter of resistance G can be increased from I to nI ...

    Text Solution

    |

  8. A galvanometer having a resistance of 100 Omega has 25 divisions. A cu...

    Text Solution

    |

  9. The deflection in a MCG is reduced from 40 divisions to 10 divisions, ...

    Text Solution

    |

  10. Which one of the following is likely to have the largest resistance?

    Text Solution

    |

  11. A galvanometer of resistance 500 Omega gives a full scale deflection, ...

    Text Solution

    |

  12. If 10% of the main current is to be passsed through a maving coil galv...

    Text Solution

    |

  13. The deflection in a galvanometer decreases to 1/5th of the original de...

    Text Solution

    |

  14. The enstivity of a galvanometer is 60"div"//Ampere. When a shunt is us...

    Text Solution

    |

  15. If a galvanometer is shunted by (1/n)th of the value of its resistance...

    Text Solution

    |

  16. Of the two identical galvanometers one is to be converted into an amme...

    Text Solution

    |

  17. A galvanometer of 25 Omega resistance can read a maximum current of 6 ...

    Text Solution

    |

  18. A certain current on passing through a galvanometer produces a deflect...

    Text Solution

    |

  19. An ammeter is obtained by shunting a 30 Omega galvanometer with a 30 O...

    Text Solution

    |

  20. If an ammeter is to be used in place of a voltmeter, then we must conn...

    Text Solution

    |