The correct answer is: A. Induction motor
An induction motor is a type of electric motor that uses a rotating magnetic field to induce current in the rotor, which then creates its own magnetic field. The interaction between the stator and rotor magnetic fields creates torque, which turns the motor.
Induction motors are used in a wide variety of applications, including fans, pumps, compressors, and blowers. They are also used in some types of electric vehicles.
Induction motors are typically less expensive than other types of motors, and they are relatively easy to maintain. They are also very efficient, which makes them a good choice for applications where energy efficiency is important.
However, induction motors have some disadvantages. They are not as powerful as other types of motors, and they can be noisy. They are also not as good at starting under heavy loads.
In a situation where load increases with speed, an induction motor will continue to run at the same speed. This is because the speed of an induction motor is determined by the frequency of the power supply and the number of poles on the stator. The load on the motor does not affect the speed.
The other options are incorrect because they are not suitable for use in a situation where load increases with speed.
- A three-phase series motor is a type of electric motor that uses a three-phase power supply. The speed of a three-phase series motor is proportional to the square root of the applied voltage. This means that if the load on the motor increases, the speed of the motor will decrease.
- A Schrage motor is a type of electric motor that uses a two-speed winding. The speed of a Schrage motor can be changed by switching between the two windings. However, the speed of a Schrage motor is not affected by the load on the motor.
- A hysteresis motor is a type of electric motor that uses a permanent magnet rotor. The speed of a hysteresis motor is determined by the applied voltage and the characteristics of the permanent magnet. The load on the motor does not affect the speed.