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Define the current sensitivity of a galv...

Define the current sensitivity of a galvanometer. Write its SI unit.

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The current sensitivity of a galvanometer is defined as the change in the deflection per unit change in the current though it .
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(a) Define current sensitivity of a galvanometer. Write its expression. (b) A galvanometer has resistance and shows full scale deflection for currently I_(g) . (i) How can it be converted into an ammeter to measure current up to I_(0) (I_(0) gt I_(g)) (ii) What is the effective resistance of this ammeter ?

Define the current sensitivity of a moving coil galvanometer and state its SI unit?

Knowledge Check

  • Current sensitivity of a galvanometer is given by

    A
    `C theta//n BA`
    B
    `nBA//C`
    C
    `nBA//CG`
    D
    `CG//nBA`

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

    A
    doubled
    B
    halved
    C
    unchanged
    D
    four times

  • In an attempt to increases the current sensitivity of a moving coil galvanometer, it is found that its resistance becomes double while the current sensitivity increases by 10%. The voltage sensitivity of the galvanometer changes by

    A
    `40%`
    B
    `-45%`
    C
    `55%`
    D
    `-55%`

    • Similar Questions

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    Increasing the current sensitivity of a galvanometer may not necessarily increase its voltage sensitivity. Justify this statement.

    Define the term 'current sensitivity' of a moving coil galvanometer.

    The current sensitivity of a galvanometer increases by 20%. If its resistance also increases by 25%, the voltage sensitivity will

    Select and write the corrcet answer : When shunted , the current sensitivity of a galvanometer reduces by a factor of 100. The resistance of the shunt is

    In order to increase the current sensitivity of a moving coil galvanometer the

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