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The sensitivity of galvanometer can be increased by decreasing:

Correct answer: B. Magnetic field

  • A. Area of coil
  • B. Magnetic field
  • C. Number of turns of coil
  • D. Torsional constant

Explanation

The sensitivity of a galvanometer is inversely proportional to the strength of the magnetic field in which it operates. A stronger magnetic field tends to dampen the motion of the coil, reducing its sensitivity to changes in current. Decreasing the magnetic field can increase the sensitivity of the 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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