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Can a galvanometer as such be used for m...

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

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### Step-by-Step Solution: 1. **Understanding the Galvanometer**: A galvanometer is an instrument used to detect and measure small electric currents. It operates on the principle that a magnetic field interacts with a current-carrying coil, causing a deflection of a needle on a dial. 2. **Sensitivity of the Galvanometer**: Galvanometers are highly sensitive devices, capable of detecting very small currents, typically in the microampere (µA) to milliampere (mA) range. This sensitivity is due to their design, which amplifies the effect of small currents. 3. **Limitations of the Galvanometer**: While galvanometers can measure small currents effectively, they are not designed to handle large currents. If a galvanometer is subjected to high currents, such as those in the kiloampere (kA) or megaampere (MA) range, it can be damaged or destroyed due to excessive heat and magnetic forces. ...
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State the underlying principle of working of a moving coil galvanometer. Write two reasons why a galvanometer can not be used as such to measure current in a given circuit.

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Knowledge Check

  • Tangent galvanometers is used to measured

    A
    Potential difference
    B
    Current
    C
    Resistance
    D
    Change
  • Tangent galvanometer is used to measure

    A
    steady currents
    B
    currents impulses
    C
    earth's magnetic field
    D
    none of these
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    A
    Steady currents
    B
    Current impulses
    C
    Magnetic moments of bar magnets
    D
    Earth's magnetic field
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