Home
Class 12
PHYSICS
A moving coil galvanometer 'A' has 200 t...

A moving coil galvanometer 'A' has 200 turns and a resistance of `100Omega`. Another meter 'B' has 100 turns resistance 400 . All the other quantities are same in both the cases. The current sensitivity of A is

A

5

B

2

C

`0.2`

D

`0.4`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (CUTTENT ELECTRICITY )|108 Videos

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - III|24 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos

Similar Questions

Explore conceptually related problems

A moving coil galvanometer has a resistance of 990Omega. in order to send only 10% of the main currect through this galvanometer, the resistance of the required shunt is

A moving coil galvanometer of resistance 100Omega is used as an ammeter using a resistance 0.1 Omega . The maximum diflection current in the galvanometer is 100 muA . Find the minimum current in the circuit so that the ammeter shows maximum deflection

A moving coil galvanometer has 100 turns and each turn has an area 2.0 cm^2 . The magnetic field produced by the magnet is 0.01 T . The deflection in the coil is 0.05 radian when a current of 10 mA is passed through it. Find the torsional constant of the suspension wire.

A moving coil galvanometer has 100 turns and each turn has an area 2.0 cm^2 . The magnetic field produced by the magnet is 0.01 T . The deflection in the coil is 0.05 radian when a current of 10 mA is passed through it. Find the torsional constant of the suspension wire.

To increase the current sensitivity of a moving coil galvanometer by 50% its resistance is increased so that the new resistance becomes twice its initial resistance. By what factor does its voltage sensitivity change?

A galvanometer coil has a resistance of 12Omega and the meter shows full scale deflection for a current of 3mA . How will you convert the meter into a voltmeter of range 0 to 18V?

A galvanometer coil has a resistance of 15Omega and the meter shows full scale deflection for a current of 4mA . How will you convert the meter into an ammeter of range 0 to 6A?

A galvanometer has a resistance of 3663Omega . A shunt S is connected across it such that ( 1//34 ) of the total current passes through the galvanometer. Then the value of the shunt is

A galvanometer has a resistance of 3663Omega . A shunt S is connected across it such that ( 1//34 ) of the total current passes through the galvanometer. Then the value of the shunt is

A galvanometer coil has a resistance of 100 Omega . When a current passes through the galvanometer, 1% of the current goes through the coil and the rest through the shunt. Find the resistance of the shunt.

AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (MOVING CHANGES & MEGNETISM)
  1. Three long straight and parallel wires carrying currents are arranged ...

    Text Solution

    |

  2. Two parallel horizontal conductors are suspended by two light vertical...

    Text Solution

    |

  3. Along wire carrying a current of 40A as shown in figure. The rectangul...

    Text Solution

    |

  4. Two long parallel wires are at a distance 2d apart. They carry steady ...

    Text Solution

    |

  5. A conducting ring of mass 2kg, radius 0.5m carries a current of 4A. I...

    Text Solution

    |

  6. A wire fo length l is bent in the from of a circular coil of some tur...

    Text Solution

    |

  7. A rectangular coil 6 cm long and 2 cm wide is placed in a magnetic fie...

    Text Solution

    |

  8. A circular coil of 20 turns and radius 10 cm is placed in uniform magn...

    Text Solution

    |

  9. A moving coil galvanometer 'A' has 200 turns and a resistance of 100Om...

    Text Solution

    |

  10. A tangent galvanometer has 66 turns and the diameter of its coil is 22...

    Text Solution

    |

  11. A galvanometer has a resistance of 3663Omega. A shunt S is connected a...

    Text Solution

    |

  12. A galvanometer having a resistance of 50Omega, gives a full scale defl...

    Text Solution

    |

  13. A galvanometer has a resistance G and current I(a) flowing in it. Prod...

    Text Solution

    |

  14. The deflection of a galvanometer falls to 1//10^(th) when a resistanc...

    Text Solution

    |

  15. A moving coil galvanometer has 150 equal divisions. Its current sensit...

    Text Solution

    |

  16. A straight rod of mass m and lenth L is suspended from the identical s...

    Text Solution

    |

  17. A rigid circular loop of radius r and mass m lies in the xy-plane on a...

    Text Solution

    |

  18. In the circuit diagrams (A,B,C and D) shown below, R is a high resista...

    Text Solution

    |

  19. To find the resistance of a galvanometer by the half deflection method...

    Text Solution

    |

  20. Deflection of galvanometer in the circuit is 71 divisions. A shunt of...

    Text Solution

    |