Home
Class 12
PHYSICS
The resistance of a galvanometer coil is...

The resistance of a galvanometer coil is R . What is the shunt resistance required to convert it into an ammeter of range 4 times

A

`(R)/(5)`

B

`(R)/(4)`

C

`(R)/(3)`

D

`4R`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    ERRORLESS |Exercise Kirchhoff s Law, cells|8 Videos
  • CURRENT ELECTRICITY

    ERRORLESS |Exercise Different Measuring Instruments|1 Videos
  • COMMUNICATION SYSTEM

    ERRORLESS |Exercise S E T|14 Videos
  • ELECTRO MAGNETIC INDUCTION

    ERRORLESS |Exercise SET|20 Videos

Similar Questions

Explore conceptually related problems

A galvanometer gives full scale deflection with 0.2A in its coil. The resistance of its coil is 10 Omega . How much shunt resistance is required to convert it into an ammeter to read current up to 1.8A?

Current passing through galvanometer is 0.002A and resistance of galvanometer is R_(g)=50Omega find out shunt resistance to convert it into ammeter of range 0.5 A

[" 31.A galvanometer gives full scale deflection with "0.2A" in its coil.The resistance of "],[" its coil is "10Omega" .How much shunt resistance is required to convert it into an "],[" ammeter to read current up to "1.8A" ? "]

A gavanometer shows full-scale deflection for a current of 1mA. Resistance of the coil of the galvanometer is 100Omega . What shunt is required to convert it into an ammeter which can measure a current of 1A?

The resistance of a galvanometer is 100Omega . A shunt of 5 Omega is connected to it to convert it into an ammeter. The internal resistance of the ammeter is

A galvanometer coil has a resistance of 10A and the meter shows full scale deflection for a current of 1mA. The shunt resistance required to convert the galvanometer into an ammeter of range 0-100mA is about

The resistance of a galvanometer is 25 ohm and it requires 50muA for full deflection. The value of the shunt resistance required to convert it into an ammeter of 5 amp is

A galvanometer of resistance 15 ohm gives full scale deflection for a current of 2 mA. Calculate the shunt resistance needed to convert it into an ammeter of range 0 to 5 A

A galvanometer coil has resistance of 30Omega and the meter shows full scale deflection for the current of 2.0 mA. Calculate the value of resistance requried to convert it into an ammeter of range 0 to 1A. Also calculate the resistance of the ammter.

ERRORLESS -CURRENT ELECTRICITY-Self Evaluation Test -19
  1. The resistance of a galvanometer coil is R . What is the shunt resis...

    Text Solution

    |

  2. Figure 6.51 shows a simple a potentiometer circuit for measuring a sma...

    Text Solution

    |

  3. A car has a fresh storage battery of emf 12 V and internal resistance ...

    Text Solution

    |

  4. If the balance point is obtained at the 35th cm in a metre bridge the ...

    Text Solution

    |

  5. The equivalent resistance across the terminals of source of e.m.f. 24 ...

    Text Solution

    |

  6. In the circuit shown in figure, switch S is initially closed and S i...

    Text Solution

    |

  7. The figure here shows a portion of a circuit. What are the magnitude a...

    Text Solution

    |

  8. A carbon resistor has colour strips as violet, yellow brown and golden...

    Text Solution

    |

  9. A voltmeter of resistance 1000 Omega is connected across a resistance ...

    Text Solution

    |

  10. A beam contains 2 xx 10^(8) doubly charged positive ions per cubic cen...

    Text Solution

    |

  11. In the circuit shown, the reading of ammeter when switch S is open ...

    Text Solution

    |

  12. In the circuit as shown in figure the

    Text Solution

    |

  13. In figure shows a rectangular block with dimensions x , 2 x and 4 x ....

    Text Solution

    |

  14. A battery is connected to a uniform resistance wire AB and B is eart...

    Text Solution

    |

  15. A cylindrical metal wire of length l and cross sections area S , has...

    Text Solution

    |

  16. A potential divider is used to give outputs of 4 V and 8 V from a 12 V...

    Text Solution

    |

  17. Find equivalent resistance between A and B

    Text Solution

    |

  18. Following figures show four situations in which positive and negative ...

    Text Solution

    |

  19. A and B are two square plates of same metal and same thickness but len...

    Text Solution

    |

  20. A moving coil galvanometer is converted into an ammeter reads upto 0.0...

    Text Solution

    |

  21. Two conductors are made of the same material and have the same length....

    Text Solution

    |