D r. Fa t m a A r s l a n
UTSA
Electrical and Computer
Engineering
Introduction
The Universal motor is a type of electric
motor that can operate on both AC or DC power. The motor is a device that converts electrical energy into mechanical energy.
The electric motor is very common in our everyday lives.
Parts & Tools
Two Wire,100 cm Long Coil.
Three Fasteners.
Two Armature Halves
Tubing.
Motor Shaft.
Two Brushes.
Field Pole.
Wire Cutter
1.5v -12v Battery
How Does It Work
The motor converts electrical energy
“Voltage Source” into mechanical energy.
The mechanical energy is then converted to kinetic energy rotating the shaft.
The current flow through the wire, the magnetic field rotates around the wire which cause the motor to run.
The amount of current in the wire, the length of the wire, and the strength of the magnetic field all determine how fast the motor spins.
Toy Motor
Toy Motor Speed Measurment
Improvement
More Wire around the field pole, increased
magnetic field.
Magnets allow the motor to spin faster.
Using more increasing the voltagae makes the motor run faster.
Experiments
1. The motor will keep moving in the same direction.
2. It will change and move to the opposite direction.
3. The commutator reverses the current in order to keep
the torque moving in the same direction. It’s important for the Motor to work, otherwise there will be no change of magnetic or electric fields and the motor won’t work.
4. The torque begins to increase till the armature is at an angle of 90 degrees with the shaft after which it becomes zero. Then as the angle increases the torque also increases till the angle becomes 270 degrees. At this point the armature will change its direction so the torque will become minimal and then slowly begins to increase. 5. The armature
Psychology Mid-Term Exam 1) Prenatal is the time from conception to birth. It is about a nine month period. Infancy is the period that extends from birth to about 18 to 24 months. It is a time of extreme dependence on adults. Early Childhood is the period that extends from the end of infancy to about 5 or 6 years of age. Children learn to become more self-sufficient during this period. Middle and late childhood extends from about 6 to 11 years of age.…
UNIT 4: Development through the Life Stages INTRODUCTION This table explains all the major physical, intellectual, emotional and social stages that occur during these following life stages; Conception Pregnancy…
asthma, for which she was under a Paediatrician at QEQM Hospital. To date, Rosie appears to be fee from these conditions. However, Mary Sheridan’s Milestone’s suggests that she may have had a developmental delay, at an earlier age with fine and gross motor skills, (Sheridan, 1973, p.13). Rosie attended a local Nursery at the age of 3 and started primary school at 4 years, 3 months and is currently ranked 25/28 youngest in her class and set in the top groups for literacy and numeracy. Drawing on Bronfenbrenner’s…
The focus of this presentation is the megacity of Beijing, which – with a population 13 900 000 people – is the twentieth largest city in the world. It has a population density of 11 500 people per kilometres square, and a total land area of 16 807 800 000 metres square. This is taken into perspective when you consider that Brisbane has a total population of 2 125 000 people, a population density of 950 people per square kilometre and an area of 1 603 000 000 metres square. Situated on China’s eastern…
* What is psychology? The science of the mind and behavior * * * Teachers of psychology Experimental psychologist (research psychologists)- never have clients; found in industry, private research institutes, or universities Applied psychologists- use studies from experimental psychologists to tackle human problems; found in hospital, school, corporations Teachers of psychology- teach, research, and publish psychology; found in universities Industrial psychologists- tailor the…
Jean Piaget (1896-1980) According to Simply Psychology, Jean Piaget was a Swiss psychologist, born the first child on August 9, 1896 to Rebecca Jackson Piaget in Neuchatel. His mother was intelligent, energetic, and kind but had a neurotic temperament that made family life a struggle. His father was a historian named Arthur Piaget, and influenced him to be driven, often choosing studies over recreation. Piaget was forced to grow up fast. When Piaget was only eleven, his notes on a rare albino…
Intimation if there is any block in the roads. Keeping boards, maintaining the cleanliness. • Apply new technologies in the transport • Calculate where to make the- pedestrian path and crowd modeling • Self driving monitoring. Artificial Intelligence in Toys and Games: The main thing in the base of AI is very helpful in the research of the field.A game environment can be either static or dynamic, Designed based on single player or two-player or multiplayers. We tell the games of racing a car, shooting…
Mohandas Karamchand Gandhi was one of the most famous ever people to have lived and to be remembered. He inspired lots of people and his work still exists at this time, in this presentation I am going to talk about the life stages of Gandhi. Mohandas Karamchand Gandhi was born on the 2nd of October 1869. He was the preeminent leader of the Indian leader of the Indian independence movement in British ruled India. Conception and Development This is when a sperm fertilises the egg. It involves…
reciprocity 2. Deficits in nonverbal communication behaviours for social interactions 3. Deficits in developing and maintaining relationships Repetitive Behaviours/Restricted Interests Must display 2 of 4 criteria 1. Stereotyped or repetitive speech, motor movements or use of objects 2. Excessive adherence to routines, ritualized patterns, excessive resistance to change 3. Highly restricted, fixated interests at abnormal intensity 4. Hyper or Hypo-reactivity to sensory input, unusual interest in sensory…
California Preschool Learning Foundations Volume 2 CALIFORNIA DEPAR TMENT OF EDUCATION • SACRAMENTO, 2010 California Preschool Learning Foundations Volume 2 Visual and Performing Arts Physical Development Health Publishing Information The California Preschool Learning Foundations (Volume 2) was developed by the Child Development Division, California Department of Education. This publication was edited by Faye Ong, working in cooperation with Laura Bridges and Desiree…