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Sholpan [36]
4 years ago
5

How does a galvanometer use a magnetic field to indicate the strength of an electric current?

Physics
1 answer:
Lynna [10]4 years ago
6 0
It consists of a coil in a constant magnetic field.  The current in the coil is the current being measured, and changes the magnetic moment of the coil (given by IA where I is current and A is loop area).  This coil's magnetic moment feels a torque in this external magnetic field that moves a needle that tells the observer what the current must be, since the external field is known by the designers of the galvanometer.
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Answer:

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Explanation:

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<em>1) v=u+at</em>

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4 years ago
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kotykmax [81]
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