If the salient pole rotor in a single phase reluctance motor is replaced by a cylindrical rotor, then Which of the following statements are true?(i) reluctance offered to stator flux remains constant for all rotor positions(ii) no reluctance torque will be developed(iii) reluctance torque will be developed(iv) reluctance offered to stator flux changes for all rotor positions

Magnetic Circuits topics include: Singly exicted magnetic systems and energy conversion principles.   A singly-excited system is one which consists of only one electrically energized coil to produce working magnetic field in the machine or any other electromechanical energy conversion device. Hence, the singly-excited system requires only one electrical input. The principle of electromechanical energy conversion states that when an electric current passes through a conductor in a magnetic field, the conductor moves. This movement can be used to convert electrical energy into mechanical... Show more

Magnetic Circuits topics include: Singly exicted magnetic systems and energy conversion principles.
 

A singly-excited system is one which consists of only one electrically energized coil to produce working magnetic field in the machine or any other electromechanical energy conversion device. Hence, the singly-excited system requires only one electrical input.

The principle of electromechanical energy conversion states that when an electric current passes through a conductor in a magnetic field, the conductor moves. This movement can be used to convert electrical energy into mechanical energy or vice versa. 

Here are some other principles related to electromechanical energy conversion:
The law of conservation of energy: Also known as the principle of energy conversion, this is the most fundamental principle of physics. It states that energy cannot be created or destroyed, but can only change from one form to another.
The fundamental principle of electromechanical energy conversion: This principle is based on the interaction between electric currents and magnetic fields. When an electric current passes through a conductor, it creates a magnetic field around it. Similarly, when a magnetic field is applied to a conductor, it induces an electric current in the conductor.
The total input energy of an electromechanical energy conversion device

This is equal to the sum of the following three components:
Energy dissipated
Energy stored
Useful output energy 

Electromechanical energy conversion devices include:
Transducers
Force-producing devices
Devices for continuous-energy conversion 

Electromechanical energy conversion finds applications in the following categories of systems:
Transducers
Force-producing devices
Devices for continuous-energy conversion

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