In a pivoted type galvanometer, the coil is pivoted between two:
Correct answer: C. Jewelled bearings
- A. Bearings
- B. Jewels
- C. Jewelled bearings
- D. All are correct
Explanation
Jewelled bearings are bearings that incorporate jewel materials, such as synthetic sapphires or rubies, as bearing surfaces. These bearings are commonly used in precision instruments where smooth and reliable movement is essential. In a pivoted type galvanometer, jewelled bearings are often employed to support the coil, ensuring minimal friction and accurate deflection in response to electrical currents.
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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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