In order to increase the current sensitivity of a moving coil galvanometer, the
Correct answer: D. all of these
- A. number of turns of the coil should be increased
- B. strength of the magnetic field should be increased
- C. area of the coil should be increased
- D. all of these
Explanation
D is correct.To increase the current sensitivity of a moving coil galvanometer, you can increase the number of turns of the coil (N), increase the strength of the magnetic field (B), or increase the area of the coil (A). Current sensitivity is directly proportional to NAB
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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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