Home
Class 12
PHYSICS
What is a sensitive galvanometer?...

What is a sensitive galvanometer?

Text Solution

AI Generated Solution

### Step-by-Step Solution 1. **Understanding the Galvanometer**: A galvanometer is an instrument used to detect and measure small electric currents. It consists of a coil of wire suspended in a magnetic field. 2. **Magnetic Field Setup**: In a typical galvanometer setup, there is a magnetic field created by permanent magnets. This magnetic field has a North and South polarity. 3. **Current-Carrying Loop**: Inside this magnetic field, there is a loop (or coil) through which current (I) flows. The area of this loop is denoted as A. ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    MODERN PUBLICATION|Exercise Revision Exercises (Additional Questions )|16 Videos

  • MOVING CHARGES AND MAGNETISM

    MODERN PUBLICATION|Exercise Revision Exercises (Fill in the Blanks )|10 Videos

  • MOVING CHARGES AND MAGNETISM

    MODERN PUBLICATION|Exercise Higher Order Thinking Skills & Advanced Level|10 Videos

  • MAGNETISM AND MATTER

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|16 Videos

  • NUCLEI

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|15 Videos

Similar Questions

Explore conceptually related problems

A current of 500muA deflects the coil of a moving coil galvanometer through 60^@ . What should be the current to cause the rotation through pi//5 radian? What is the sensitivity of galvanometer?

The current sensitivity of a moving coil galvanometer increases by 35% , when its resistance is increased by a factor 3. The voltage sensitivity of galvanometer changes by a factor

Knowledge Check

  • A moving coil sensitive galvanometer gives at once much more deflection. To control its speed of deflection

    A
    A high resistance is to be connected across its terminals
    B
    A magnet should be placed near the coil
    C
    A small copper wire should be connected across its terminals
    D
    The body of galvanometer should be earthed

  • A moving coil sensitive galvanometer gives at once much large deflection. To control its speed of deflection

    A
    a magnet should be placed near the coil
    B
    a high resistance is placed across the coil
    C
    galvanometer body should be earthed
    D
    a copper wire is connected across the coil

  • A moving coil sensitive galvanometer gives at once much large deflection. To control its speed of deflection.

    A
    a magnet should be placed near the coil
    B
    a high resistance is placed across the coil
    C
    galvanometer body should be earthed
    D
    a copper wire is connected across the coil

    • Similar Questions

    Explore conceptually related problems

    A moving coil galvanometer shows deflection of 100 divisions when 20 A current is passed through it.If resistance of galvanometer coil is 50ohm ,then find voltage sensitivity of galvanometer.

    A galvanometer of resistance 95 Omega shunted by a resistance of 50Omega gives a deflection of 50 divisions when joined in series with a resistance of 20 k2 and a 2 volt battery, what is the current sensitivity of galvanometer (in div//muA)

    A current of 300muA deflects a coil of a moving coil galvanometer through 30^@ . What should be the current to cause the rotation through pi//5 radius? What is the current sensitivity of the galvanometer ? If resistance of galvanometer is 50Omega , find its voltage sensitivity.

    A moving coil sensitive galvanometer gives at once much more deflection. To control its speed of deflection.

    If the current sensitivity of a galvanometer is doubled, then its voltage sensitivity will be

    Home
    Profile