Home
Class 12
PHYSICS
A galvanoment of resistance 25 Omega giv...

A galvanoment of resistance `25 Omega` gives full scale deflection for a current of 10 mA. What resistance is to be connected in its series so that it can work as a voltmeter of range 10 V ?

A

`10000 Omega`

B

`10025 Omega`

C

`975 Omega`

D

`9975 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
Here `R_G = 25 Omega , I_g = 10 mA = 10^(-2) A and V = 100 V`
`:.` Series resistance `R = V/(I_g) - R_G = 100/(10^(-2)) - 25 = 9975 Omega`
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    U-LIKE SERIES|Exercise FILL IN THE BLANKS|12 Videos

  • MOVING CHARGES AND MAGNETISM

    U-LIKE SERIES|Exercise TRUE OR FALSE|5 Videos

  • MOVING CHARGES AND MAGNETISM

    U-LIKE SERIES|Exercise CASE BASED/SOURCE-BASED INTEGRATED QUESTIONS|18 Videos

  • MODEL TEST PAPER 3 (UNSOLVED)

    U-LIKE SERIES|Exercise SECTION A|3 Videos

  • NUCLEI

    U-LIKE SERIES|Exercise Self Assessment Test|10 Videos

Similar Questions

Explore conceptually related problems

A galvanometer of resistance 50 Omega gives a full scale deflection for a current 5 xx 10^(-4) A. The resistance that should be connected in series with the galvanometer to read 3 V is

A galvanometer of resistance 500 Omega gives a full scale deflection, for a current of 20mA . Even without using a high resistance in series, it can be used as a voltmeter. The range of the voltmetr will be

A galvanometer of resistance 40 Omega gives the full scale deflection for a current of 10 m A through it. A resistance of 9960Omega is connected in series with the galvanometer coil. The mximum voltage that can be measured by the voltmeter is

A galvanometer of resistance 100 Omega gives the full scale deflection for a current of 10 m A. If a resistance of 1 Omega is connected in parallel to the coil of the galvanometer , then maximum current that can be measured with the galvanometer will be

A galvanometer of resistance 10Omega shows full scale deflection for current 100 mA. The resistance that needs to be connected in series with the galvanometer so that it can be used to measure potential difference in the range 0-100 V is (in Ohm):

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

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 100Omega gives full scale deflection for the current of 0.1 A . The series resistance required to convert it into voltmeter of range 100 V is

U-LIKE SERIES-MOVING CHARGES AND MAGNETISM -MULTIPLE CHOICE QUESTIONS
  1. A current I flows along the length of an infinitely long, straight, th...

    Text Solution

    |

  2. A galvanometer coil has a resistance of 10 Omega and the meter shows f...

    Text Solution

    |

  3. A galvanoment of resistance 25 Omega gives full scale deflection for a...

    Text Solution

    |

  4. At a distance of 10 cm from a long staright wire carrying a current I,...

    Text Solution

    |

  5. Magnetic effect of current was discovered by

    Text Solution

    |

  6. The magnetic field vec(dB) due to a small current element vec(dl) carr...

    Text Solution

    |

  7. A circular coil of radius R carries an electric current. The magnetic ...

    Text Solution

    |

  8. The magnetic field B within the solenoid having n turns per unit lengt...

    Text Solution

    |

  9. A battery is connected between two points A and B on the circumference...

    Text Solution

    |

  10. The direction of magnetic field lines close to a straight conductor ca...

    Text Solution

    |

  11. In a current carrying long solenoid the magnetic field produced inside...

    Text Solution

    |

  12. At a distance of 10 cm from a long straight wire carrying current the ...

    Text Solution

    |

  13. SI unit of magnetic permeability mu0 (" or " mu) is

    Text Solution

    |

  14. The current in the windings on a toroid is 2.0 A. There are 400 turns ...

    Text Solution

    |

  15. The path executed by a charged particle, whose motion is perpendicular...

    Text Solution

    |

  16. The radius of curvature of the path of a charged particle moving under...

    Text Solution

    |

  17. A charged particle moves with a velocity vecv in a uniform magnetic fi...

    Text Solution

    |

  18. A beam of well collimated cathode rays travelling with a speed of 5 xx...

    Text Solution

    |

  19. A charged particle enters a magnetic field B with its initial velocity...

    Text Solution

    |

  20. An alpha particle and a proton travel with same velocity in a magnetic...

    Text Solution

    |