Home
Class 12
PHYSICS
A 100 V voltmeter having an internal res...

A `100 V` voltmeter having an internal resistance of `20 k Omega` is connected in series with a large resistance `R` across a `110 V` line. What is the magnitude of resistance `R` if the voltmeter reads `5 V`?

A

`210K Omega`

B

`315 K Omega`

C

`420 K Omega`

D

`440 K Omega`

Text Solution

Verified by Experts

The correct Answer is:
3
`V=iR`
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise LEVEL-III|45 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise NCERT Based Questions|20 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise LEVEL-I(C.W)|58 Videos

  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 4 (SINGLE ANSWER TYPE QUESTION)|17 Videos

  • NUCLEAR PHYSICS

    NARAYNA|Exercise LEVEL-II-(H.W)|9 Videos

Similar Questions

Explore conceptually related problems

A 150 V voltmeter has a resistance of 20,000 Omega when connected in series with a large resistance R across a 110-volt line the meter reads 5V. Find the resistance R.

A 100 V voltmeter of internal resistance 20 k Omega in series with a high resistance R is connected to a 110 V line. The voltmeter reads 5 V , the value of R is

A 100 V voltmeter of internal resistance 20 k Omega n series with a high resistance R is connected to 110 V line. The voltmeter reads 5V, the value of R is -

A 100 volt voltmeter whose resistance is 20 k Omega is connected in series to a very high resistance R. When it is joined in a line of 110 volt, it reads 5 volt. What is the magnitude of resistance R ?

A resistance DeltaR =1980 Omega is connected in series with a voltmeter when its scale divisons decreases eta =10%. Calculate the resistance R_(V) of the voltmeter.

A cheap voltmeter with an internal resistance of 30Omega is connected to the terminals of a battery whose internal resistance is 5Omega and true emf 1.5 V. What would be the terminal voltage as read by the voltmeter?

A voltmeter has a resistance of 50 Omega is connected across a cell of e.m.f. 2V and internal resistance 10 Omega . The reading of voltmeter is

A voltmeter of resistance 1000 Omega is connected across a resistance of 500 Omega in the given circuit. What will be the reading of voltmeter

NARAYNA-MOVING CHARGES AND MAGNETISM-Level-II(C.W)
  1. A horizontal wire of length 0.5m carries a current of 5A. If the mass ...

    Text Solution

    |

  2. Currents of 10A, 2A are passed through two parallel wires A and B resp...

    Text Solution

    |

  3. Two long parallel conductors carry currents i and 2I in the same direc...

    Text Solution

    |

  4. A horizontal wire carries 200amp current below which another wire of l...

    Text Solution

    |

  5. Two long parallel conductors are placed at right angles to a metre sca...

    Text Solution

    |

  6. A rectangular loop of wire of size 4 cm // 10cm carries a steady curre...

    Text Solution

    |

  7. Wire 1 in Fig. is oriented along the y-axis and carries a steady curre...

    Text Solution

    |

  8. A square loop of side L carries a current I. Another smaller square lo...

    Text Solution

    |

  9. A coil in the shape of an equilateral triangle of side 0.02 m is suspe...

    Text Solution

    |

  10. A moving coil galvanometer A has 200 turns and resistance 100 Omega. A...

    Text Solution

    |

  11. A rectangular coil of size 3xx3cm consisting of 100 turns caries 0.1A....

    Text Solution

    |

  12. To increase the current sensitivity of a moving coil galvanometer by 5...

    Text Solution

    |

  13. A galvanometer of resistance 25Omega is connected to a battery of 2 vo...

    Text Solution

    |

  14. A voltmeter has a range O - V with a series resistance R. With a serie...

    Text Solution

    |

  15. A 100 V voltmeter having an internal resistance of 20 k Omega is conne...

    Text Solution

    |

  16. A galvanometer ahs resistance G and Current I(g) produces full scale d...

    Text Solution

    |

  17. Tha scale of a galvanometer is divided into 150 equal divisions. The g...

    Text Solution

    |

  18. In a circuit 5 percent of total current passes through a galvanometer....

    Text Solution

    |

  19. A galvanometer has a sensitivity of 60 division/ampere. When a shunt i...

    Text Solution

    |

  20. The sensitivity of a galvanometer that measures current is decreased b...

    Text Solution

    |