Electrical Engineering XYZ MCQs
Flux density under trailing pole tips in case of generator will:
- Decrease
- Increase
- Either of these
- None of these
Correct answer: 2. Increase
Explanation: Flux density under trailing pole tips in a generator refers to the magnetic flux density in the region under the trailing edge of the generator poles. The trailing edge is the part of the pole where the magnetic field is leaving the rotor and entering the stator.
When a generator is loaded, more current flows through the armature winding, creating a stronger magnetic field. This increased current results in higher magnetic flux density under the trailing pole tips. The flux density is directly proportional to the current flowing through the windings.
Therefore, as the generator load increases, the flux density under the trailing pole tips will increase. The correct answer is “Increase.”