While construction a galvanometer, the enamelled copper wire is wound on:
Correct answer: D. Non-magnetic material
- A. Magnetic material
- B. An insulator
- C. A conductor
- D. Non-magnetic material
Explanation
While the core material for the coil in a galvanometer is typically chosen to be non-magnetic to prevent interference with the magnetic field produced by the coil itself, the core material still needs to be a conductor to allow current flow. Using a non-magnetic material that is also a conductor, such as brass or aluminum, would be suitable for constructing the coil of a galvanometer.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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