X1. The magnetic strength of the field poles on a permanent magnet DC motor cannot be varied. a) true b) false X2. The________ of a permanent magnet DC motor can be changed. a) speed b) direction of rotation c) both "a" and "b" d) neither "a" nor "b" X3. A "printed-circuit motor" is another term for a_________ motor. a) DC servo-disc b) DC servomotor c) DC brushless d) none of the above

Q: Electromagnetic theory Problem 1 A) How does a magnetic field form? Explain with an example. B)…

A: Step 1: A) Magnetic Field Formation: A magnetic field surrounds a conductor that carries current. It…

Q: QUESTION 1 When discussing motors with commutators and brushes, the neutral plane is: O…

A: Four options are given in the question. We need to choose the correct option. It is asked when…

Q: E-1). The amount of torque developed by a 3-phase squirrel-cage induction motor from no-load to…

A: There are three descriptions are given about the induction motor.

Q: An increase in temperature can decrease the magnetic field of a permanent magnet. The material =ed…

A: Based on the information provided, we know that the temperature increase of 50°C (from 20°C to 70°C)…

Q: (b) A 8 pole, three-phase induction motor operates from a supply frequency of 50 Hz. Calculate: ()…

A:

Q: Q1/ Correct and incorrect and correct the error if found. 1- It is not possible to increase the…

A: A DC (Direct Current) motor is a type of electrical machine that converts electrical energy into…

Q: The motor will work when the wire loop is connected to the [select all that apply) split ring…

A: The commutator changes direction of current at a point where direction is zero. This keeps the…

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.