Wednesday, February 10, 2016

No Wires World

Wireless Power has the ability to deliver major advancements in industries and applications that are dependent on physical, contacting connectors, which can be unreliable and prone to failure.

                     

Benefits of Wireless Power

  • Reduce costs associated with maintaining direct connectors
  • Greater convenience for ​the charging of everyday electronic devices
  • Safe​ power transfer to applications that need to remain sterile or hermetically sealed
  • Electronics can be fully enclosed, reducing the risk of corrosion due to elements such as oxygen and water.
  • ​Robust and consistent power delivery to rotating, highly mobile industrial equipment​
  • ​Delivers reliable power transfer to mission critical systems in wet, dirty and moving environments.

Van de Graaff

A Van de Graaff generator is an electrostatic generator which uses a moving belt to accumulate electric charge on a hollow metal globe on the top of an insulated column, creating very high electric potentials. It produces very high voltage direct current (DC) electricity at low current levels.
     

When the Van de Graaff generator starts charging, it transfers the charge to the person who is touching it. Since the person's hair follicles are getting charged to the same potential, they try to repel each other. This is why the hair actually stands up. It would not make a difference if the polarity of the Van de Graaff generator were reversed. As long as the person is insulated, the charge will build up (assuming, of course, that the hair is clean and dry).

Image result for what happens when a person touches a van de graaff generator do

Circuit Diagram

We use symbols for our circuit diagrams because the represent something.
   Image result for circuit diagrams
  Image result for circuit diagrams
  Using symbols in circuit diagrams makes it so much easier. Each electronic component has a symbol. After seeing a few circuit diagrams, you’ll quickly learn how to distinguish the different symbols. If you know the symbols you will quickly get whats going on the circuit diagram.

Tuesday, February 9, 2016

Pretzel Circuit

Pretzels-Electrons
Students-Light bulb
Pretzel Bag-Battery

   Electrons travel around the circuit. They pick up energy (volts) from the energy supply ( battery, generator). They deposit their energy (volts) in the items along the circuit (bulbs, resistors, etc). The electron cannot have any energy (volts) left when it completes the circle back to the battery.

                   Image result for series circuitImage result for series circuit

Electricity So Far

       So far i have learned that electricity  is a form of energy resulting from a current, which means a flow of electric charges.  Electricity travels by current. Electricity gives a wide variety of well-known effects, such as lightning, static electricity, electromagnetic induction and electric current.

                        Image result for electricity

Wednesday, February 3, 2016

Electric Vocabulary

   I have learned that electricity is a form of energy resulting from a current, which means a flow of electric charges. A generator converts mechanical energy to electricity, mechanical energy-the ability to do work. An electrical current is carried by a circuit.