The galvanometer usually consists of a:
Correct answer: A. Coil placed in a magnetic field
- A. Coil placed in a magnetic field
- B. Coil placed in an electric field
- C. Coil and a scale only
- D. None of these
Explanation
A galvanometer typically consists of a coil of wire (often called the moving coil) that is suspended in a magnetic field provided by permanent magnets or electromagnets. When current flows through the coil, it experiences a torque due to the interaction between the magnetic field and the current-carrying coil. This torque causes the coil to rotate, which is then measured to indicate the presence and magnitude of the current.
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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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