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State the principle of moving coil galva...

State the principle of moving coil galvanometer.

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**Step-by-Step Solution:** 1. **Understanding the Galvanometer**: A moving coil galvanometer is an instrument used to measure small electric currents. It operates based on the interaction between a magnetic field and a current-carrying coil. 2. **Current Flow**: When an electric current flows through the coil of the galvanometer, it creates a magnetic field around it. This is due to the principle of electromagnetism, where an electric current generates a magnetic field. 3. **Magnetic Field Interaction**: The galvanometer is placed in an external magnetic field. The magnetic field produced by the coil interacts with the external magnetic field. ...
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State the principle of a moving coil galvanometer and explain its working Show that the current through a moving coil galvanometerr is directly proportional to the deflection of the coil.

Write the underlying principle of a moving coil galvanometer.

Knowledge Check

  • Assertion : Earth's magnetic field does not affect the working of a moving coil galvanometer. Reason: The earth's magnetic field is quite weak as compared to magnetic field produced in the moving coil galvanometer.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true and reason is not the correct explanation of assertion.
    C
    If assertion is ture but reason is false.
    D
    If both assertion and reason are false.

  • To make the field radial in moving coil galvanometer

    A
    the number of turns in the coil is increased
    B
    poles are cylindrically cut
    C
    magnet is taken in the form of horse shoe
    D
    coil is wound an aluminium frame

    • Similar Questions

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    Write the underlying principle of a moving coil galvanometer.

    State the working principle of a moving coil galvanometer. Under what conditions the galvanometer can be more sensitive? Explain.

    Discuss the principle, construction and theory of a dead beat galvanometer. State two merits of moving coil galvanometer.

    Describe the working principle of a moving coil galvanometer. Why is it necessary to use (i) a radial magnetic field and (ii) a cylindrical soft iron core in a galvanometer? Write the expression for current sensitivity of the galvanometer.

    Describe the working principle of a moving coil galvanometer. Why is it necessary to use (i) a radia magnetic field and (ii) a cylindrial soft iron core in a galvanometer?Write the expression for current sensitivey of galvanometer. Can a galvanometer as such be used for measuring the current? Explain.

    Why is phosphor bronze alloy preferred for the suspension wire of a moving coil galvanometer?

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