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Can a galvanometer be used for measuring...

Can a galvanometer be used for measuring the current? Explain.

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A galvanometer cannot be used for measuring the current
(i) A galvanometer has a finite large resistance and is connected in series in the circuit. So it will increase the resistance of circuit and hence change the value of current in the circuit.
(ii) A galvanometer is a very sensitive device, it gives a full scale deflection for the current of the order of microampere hence if connected, it will not measure current of the order of ampere.
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Knowledge Check

  • Assertion: A tangent galvanometer is used for measuring current. Reason:As it is direct reading. Which of the following is correct?

    A
    Both Assertion and reason are true and reason explains assertion correctly.
    B
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    C
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    D
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    B
    The rate of gaseous transport
    C
    the rate of water transport
    D
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    A
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    B
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    C
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    D
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