When a moving coil galvanometer is attached to an electric circuit, its deflection is directly proportional to the
Correct answer: D. amount of current passing through the coil.
- A. area of the coil.
- B. material of the coil.
- C. total number of turns in the coil.
- D. amount of current passing through the coil.
Explanation
The correct answer is Option D: amount of current passing through the coil. In a moving coil galvanometer, the coil is placed in a magnetic field, and the interaction between the magnetic field and the current passing through the coil results in a deflection. The greater the current passing through the coil, the greater the deflection. The other options (area of the coil, material of the coil, total number of turns in the coil) are not directly related to the deflection of a moving coil galvanometer.
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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