Home
Class 12
PHYSICS
A galvanometer can withstand safely a ma...

A galvanometer can withstand safely a maximum current of 5 mA. If is converted into voltmeter readding upto 20 V by connecting in series an external resistance of `3960 Omega`. The resistance of galvanometer is

A

`48 Omega`

B

`44 Omega`

C

`36 Omega`

D

`40 Omega`

Text Solution

Verified by Experts

The correct Answer is:
(iv)
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Assignment (Section A) Objective Type Questions (One option is correct)|55 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Assignment (Section B) Objective Type Questions (One option is correct)|34 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Illustration|12 Videos

  • MOVING CHARGE AND MAGNESIUM

    AAKASH INSTITUTE|Exercise SECTION D|16 Videos

  • NUCLEI

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-D)|10 Videos

Similar Questions

Explore conceptually related problems

A moving coil galvanometer gives full scale defection when a current of 0.05 A is passed through its coil it is converted in to a voltmeter reading up to 5V by using an external resistance of 975 omega what is the resistance of the galvanometer coil ?

A galvanometer of resistance 99 Omega requires 5 mA current for full scale deflection. It can be converted into an ammeter of range 0.5 A by connecting a shunt resistance of

A voltmeter reading upto 10 V has a resistance of 1000 Omega . It can be converted into an ammeter reading up ot 10 A by connecting a shunt of

A galvanometer of 25 Omega resistance can read a maximum current of 6 mA . It can be used as a voltmeter to measure a maximum of 6 V by connecting a resistance to the galvanometer. Identify the correct choice in the given answers

A galvanometer of resistance 25 Omega gives full scale deflection for a current of 10 milliampere , is to be changed into a voltmeter of range 100 V by connecting a resistance of ‘ R ’ in series with galvanometer. The value of resistance R in Omega is

A galvanometer of resistance 10 ohm and maximum current of 2muA is converted into voltmeter of range 100mV and when converted into ammeter then range is 1mA. When these voltmeter and ammeter are connected by a (ideal) battery is series with a resistance of R=1000 Omega , then

[" 2.A galvanometer of resistance "20" ohm suffers full scale deflection for a current "],[20mA" .It can be converted a Voltmeter of range "200V" by "],[" 1) Connecting in series a resistance of "9980Omega],[" 2) Connecting in series a resistance of "19980Omega],[" 3) Using a shunt of resistance "20m Omega],[" 4) Using a shunt of resistance "9980Omega]

AAKASH INSTITUTE-MOVING CHARGES AND MAGNETISM-Try Yourself
  1. What will be ratio if the particles in above examples had same kinetic...

    Text Solution

    |

  2. An alpha particle and proton enter a region of magnetic field which is...

    Text Solution

    |

  3. Two protons enter a region of transverse magnetic field. What will be ...

    Text Solution

    |

  4. In the previous problem what will be the frequency of electric field i...

    Text Solution

    |

  5. In the Example 16, with what energy does the alpha-particle emerge out...

    Text Solution

    |

  6. What is net magnetic field at point O?

    Text Solution

    |

  7. Find the magnetic field at point P in following cases

    Text Solution

    |

  8. Find oint vec(B).vec(dl) over following loops (direction in which inte...

    Text Solution

    |

  9. Find the magnetic field at point O shown in the figure

    Text Solution

    |

  10. Find the direction of magnetic field at a point P due to two infinite ...

    Text Solution

    |

  11. In the above problem find the magnetic field (a) near the ends of the ...

    Text Solution

    |

  12. Find magnetic moment in following cases (Eash segment is of lengt...

    Text Solution

    |

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

    Text Solution

    |

  14. A galvanometer having a resistance of 8 ohm is shunted by a wire of re...

    Text Solution

    |

  15. In case (a) and (b) where will the magnetic field be maximum, measured...

    Text Solution

    |

  16. If for an Amperian loop oint vec(B).vec(dl) = 0 does that mean vec(B) ...

    Text Solution

    |

  17. What will be ratio if the particles in example 40 had same kinetic ene...

    Text Solution

    |

  18. Can you find on the wire without finding force on its individual secti...

    Text Solution

    |

  19. Will there be any tension in a current carrying loop placed in uniform...

    Text Solution

    |

  20. Let vec(M) and vec(L) represent magnetic moment and angular momentum v...

    Text Solution

    |