| Tag Archive | magnetic fields

How can I make a simple magnetic generator?

Thursday, December 29, 2011

Would using neodymium magnets make it better? I was thinking of getting a little DC motor and gluing a cd to it, glue little neodymium discs to it in a way that I could put other magnets next to it to interact with the magnetic fields to make the cd spin the dc motor? What [...]

someone pls help with these last physics questions asap!? 10pts?

Sunday, September 4, 2011

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PLEASE HELP WITH THESE QUIZ QUESTIONS Question 36 Which of the following is used in an electric power station to minimize the power loss in an electric power transmission? ac generator step-up transformer step-down transformer dc motor Question 37 Which of the following electro-magnetic radiations has the shortest wavelength? microwaves x rays gamma rays radio [...]

How is electrical energy generated in Dynamic Braking when using AC induction motors?

Saturday, May 14, 2011

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Locomotives that use Dynamic Braking with DC traction motors excite the field coils of the motors and turn them into energy producing generators. AC induction motors don’t have that option since there are no windings on the rotating armature and there are no slip rings. When used as a traction motor, there are short circuited [...]

Kindly make a critique or your comments (positive or negative) about electromagnetism. 10 POINTS FOR THE BEST!?

Friday, May 6, 2011

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Kindly make a critique or your comments (positive or negative) about electromagnetism. 10 POINTS FOR THE BEST! Electromagnetism is the physics of the electromagnetic field, a field that exerts a force on particles with the property of electric charge and is reciprocally affected by the presence and motion of such particles. A changing magnetic field [...]

What is the relation of electromagnetism in the lives of people? 10 POINTS FOR THE BEST ANSWERER!!!?

Thursday, May 5, 2011

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What is the relation of electromagnetism in the lives of people? 10 POINTS FOR THE BEST ANSWERER!!!? What is the relation of electromagnetism in the lives of people? 10 POINTS FOR THE BEST ANSWERER!!! You can also add some comments about electromagnetism, your feedbacks, or opinions regard it. THANKS SO MUCH! I need a long [...]

Kindly make a critique or your comments (positive or negative) about electromagnetism. 10 POINTS FOR THE BEST!?

Wednesday, May 4, 2011

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Kindly make a critique or your comments (positive or negative) about electromagnetism. 10 POINTS FOR THE BEST! Electromagnetism is the physics of the electromagnetic field, a field that exerts a force on particles with the property of electric charge and is reciprocally affected by the presence and motion of such particles. A changing magnetic field [...]

What is the relation of electromagnetism in the lives of people? 10 POINTS FOR THE BEST ANSWERER!!!?

Tuesday, May 3, 2011

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What is the relation of electromagnetism in the lives of people? 10 POINTS FOR THE BEST ANSWERER!!!? What is the relation of electromagnetism in the lives of people? 10 POINTS FOR THE BEST ANSWERER!!!? What is the relation of electromagnetism in the lives of people? 10 POINTS FOR THE BEST ANSWERER!!! You can also add [...]

Kindly make a critique or your comments (positive or negative) about electromagnetism. 10 POINTS FOR THE BEST!?

Saturday, April 30, 2011

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Kindly make a critique or your comments (positive or negative) about electromagnetism. 10 POINTS FOR THE BEST! Electromagnetism is the physics of the electromagnetic field, a field that exerts a force on particles with the property of electric charge and is reciprocally affected by the presence and motion of such particles. A changing magnetic field [...]

What is the power of a light bulb that uses a voltage of 120 volts and 0.8 amps of current?

Thursday, April 7, 2011

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What is the power of a light bulb that uses a voltage of 120 volts and 0.8 amps of current? A. 96 watts B. 150 watts C. 0.0067 watts D. 120.8 watts 10. A scientists named Andre-Marie Ampere performed many experiments involving electricity and magnetism and thought that all magnetism is the result of moving [...]

Physics: Hello I just finished majority of my physic's homework but I still need help on some questions.?

Wednesday, March 23, 2011

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1. When the magnet is pushed into the middle coil, ____________ as much voltage is induced as in the coil on the left? 2. When the magnet is pushed into the coil on the right, _________ as much voltage is induced as in the coil on the left? 3. Another name for the generator effect? [...]