Home
Class 12
PHYSICS
A galvenometer has a resistance of 30 Om...

A galvenometer has a resistance of `30 Omega`, and a current of `2 mA` is needed for a full- scale deflection. What is the resistance and how is it to be connected to converted to the voltmeter of `0-2 V` range?

Text Solution

Verified by Experts

The correct Answer is:
`(##RES_PHY_CE_E01_038_A01##)`
(a) `S=(30xx2xx10^(-3))/(0.3-2xx10^(-3))=0.2013Omega`
(b) `R= 70 Omega`
`(##RES_PHY_CE_E01_038_A02##)`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise Exercise-1 (Part-2)|47 Videos

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise Exercise-1 (Part-3)|2 Videos

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise Solued miscellaneous Prolblems|8 Videos

  • COMMUNICATION SYSTEMS

    RESONANCE ENGLISH|Exercise Exercise 3|13 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP.No.71|1 Videos

Similar Questions

Explore conceptually related problems

A galvanometer has a resistance of 30 ohm and a current of 2 mA is needed to give a full scale deflection. What is the resistance needed and how is it to be connected to convert this galvanometer (a) Into an ammeter of 0.3 A range ? (b) Into a volmeter of 0.2 V range ?

The galvanometer shown in figure has resistance 50 Omega and current required for full scale deflection is 1mA. Find the resistance R_(1),R_(2) and required to convert to convert it into ammeter having ranges as indicated.

A galvanometer having resistance of 50 Omega requires a current of 100 Omega A to given full scale deflection. How much resistance is required to convert it into an ammeter of range of 10 A ?

A galvenometer has a resistance of 50 Omega and its full-scale deflection current is 50 mu A . What resistance should be added to it so that it can have a range of 0-5 V ?

When a current of 5mA is passed through a galvanometer having a coil of resistance 15Omega , it shows full sacle deflection. The value of the resistance to be put in series with the galvanometer to convert it into a voltmeter of range 0-10V is:

A galvanometer coil has a resistance of 50 Omega and the meter shows full scale deflection for a current of 5 mA . This galvanometer is converted into a voltmeter of range 0 - 20 V by connecting

The full scale deflection current of a galvanometer of resistance 1Omega is 5 mA . How will you convert it into a voltmeter of range of 5V ?

A galvanometer coil has a resistance of 990Omega and it shows full scale deflection for a current of 10mA. Calculate the value of resistance required to convert it into an ammeter of range 1 A.

The range of voltmeter of resistance 300 Omega is 5 V. The resistance to be connected to convert it into an ammeter of range 5 A is

When 500μA curre nt is passed through a galvanometer of 20Omega , it gives a full scale deflection. The external resistance need to be connected to measure 5V is

RESONANCE ENGLISH-CURRENT ELECTRICITY-Exercise-1 (Part-1)
  1. Find the equivalent resistance of the circuit given in figure between ...

    Text Solution

    |

  2. An infinite ladder is constructed with 1(Omega)and 2(Omega)resistor as...

    Text Solution

    |

  3. As shown in figure a variable rheostat of 2kOmega is used to control t...

    Text Solution

    |

  4. ABCD is a square where each side is a uniform wire of resistance 1Omeg...

    Text Solution

    |

  5. Suppose you have three resistor of (20 Omega),(50 Omega)and (100 Omega...

    Text Solution

    |

  6. Three bulbs,each having a resistance of 180(Omega)are connected in par...

    Text Solution

    |

  7. Consider the circuit shown in figure.Find the current through the10(Om...

    Text Solution

    |

  8. Siix lead-acid type of secondary cells, each of emf 2.0 V and internal...

    Text Solution

    |

  9. In the figure each cell has an emf of 1.5 V and internal resistnce of ...

    Text Solution

    |

  10. In the circuit shown all live resistors have the same value 200 ohms a...

    Text Solution

    |

  11. Find the currents through the three resistors shown in Figure

    Text Solution

    |

  12. Find the value of i(1)//I(2)in figure if (a)R=0.1(Omega) (b)R=1(Omega)...

    Text Solution

    |

  13. A galvenometer has a resistance of 30 Omega, and a current of 2 mA is ...

    Text Solution

    |

  14. A voltmeter of resistances 400(Omega)is used to measure the potential ...

    Text Solution

    |

  15. An electrical circuit is shown in figure. Calculate the potential diff...

    Text Solution

    |

  16. A battery of emf 1.4 V and internal resistance 2 Omega is connected to...

    Text Solution

    |

  17. A potentiometer wire AB having length L and resistance 12 r is joined ...

    Text Solution

    |

  18. Figure 6.13 shows a 2.0 V potentiometer used for the determination of ...

    Text Solution

    |

  19. Figure 6.36 shows a potentiometer with a cell of emf 2.0 V and interna...

    Text Solution

    |

  20. Figure 6.32 shows a meter bridge in the (which is nothing but a partic...

    Text Solution

    |