Home
Class 12
PHYSICS
An ammeter gives full deflection when a ...

An ammeter gives full deflection when a current of `2 amp`. Flows through it. The resistance of ammeter is `12 ohms`. If the same ammeter is to be used for measuring a maximum current of `5 amp`, then the ammeter must be connected with a resistance of

A

8 `Omega` is series

B

18 `Omega` in series

C

8 `Omega` in parallel

D

18 `Omega` in parallel

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|111 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Evaluation test|18 Videos

  • MAGNETISM

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

Similar Questions

Explore conceptually related problems

For the measurement of current ammeter is connected in

A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes through the coil. When it is converted to a 10 A ammeter, the shunt resistance is

When an ammeter is connected in parallel the resistance of the circuit is

An ammeter of resistance R gives a full scale deflection when a current of 30 A is passed through it. We eant to convert it into an ammeter to measure the current only upto 10A. The value of the shunt required for this is

In a ammeter 0.2% of main current passes through the galvanometer. If resistance of galvanometer is G , the resistance of ammeter will be

In an ammeter 0*2% of main current passes through the galvanometer. If resistance of galvanometer is G, the resistance of ammeter will be

TARGET PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT-CRITICAL THINKING
  1. The deflection in a galnometer falls from 50 divisions to 20 divisions...

    Text Solution

    |

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

    Text Solution

    |

  3. An ammeter gives full deflection when a current of 2 amp. Flows throug...

    Text Solution

    |

  4. A milliammeter of resistance 5 ohm gives a full scale deflection for a...

    Text Solution

    |

  5. We have a galvanometer of resistance 25 Omega. It is shunted by a 2.5 ...

    Text Solution

    |

  6. A moving coil galvanometer has resistance 30 Omega and gives full scal...

    Text Solution

    |

  7. A 36 Omega galvanometer is shunted by resistance of 4Omega. The percen...

    Text Solution

    |

  8. In an ammeter, 10% of the main current is passing through galvanometer...

    Text Solution

    |

  9. The shunt required for 10% of main current to be sent through the movi...

    Text Solution

    |

  10. A galvanometer (G = 1000 Omega) gives full scale deflection when a cur...

    Text Solution

    |

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

    Text Solution

    |

  12. A galvanometer of resistance 90 Omega is shunted by a resistance of 10...

    Text Solution

    |

  13. A voltmeter reads 3 V at full-scale deflection and is graded as 6000 O...

    Text Solution

    |

  14. Statement I: The resistance of an ideal voltmeter should be infinite. ...

    Text Solution

    |

  15. A moving coil galvanometer of resistance 40 Omega gives full scales de...

    Text Solution

    |

  16. A galvanometer can withstand safely a maximum current of 5 mA. If is c...

    Text Solution

    |

  17. A galvanometer gives full scale deflection when the current passed thr...

    Text Solution

    |

  18. A voltmeter of range 3V and resistance 200Omega cannot be converted to...

    Text Solution

    |

  19. A galvanometer of resistance 50Omega is connected to a b attery of 3V ...

    Text Solution

    |

  20. A galvanometer may be converted into an ammeter or a voltmeter. In whi...

    Text Solution

    |