| Tag Archive | magnets

EMP effects on Solar Panels and wind generators?

Tuesday, September 6, 2011

My house runs completely on solar panels and I’ve heard that an EMP weapon "Electro Magnetic pulse" would fry them making them useless. I’ve also heard talk of possibly protecting electronics underground, is this possible? and if so how deep would you have to go? Naturally what’s on your roof would be toasted so what’s [...]

In a huge electrical generator, how is the initial magnetic field produced in the NON permanent magnets?

Thursday, August 11, 2011

1 Comment

I understand when the copper coil spins within the magnetic field, the current is produced. I just dont know how the magnets that are NOT permanent magnets get magnetised initially???????

Help in creating renewable energy?

Tuesday, July 5, 2011

2 Comments

I need to make a relatively new invention for a physics research that’ll help save the environment; so, I thought about doing something regarding electricity. My inspiration was the hamster generator … which then evolved (in my mind) to be a wheel being spun endlessly by magnets, thus creating power. Too bad people have already [...]

Can you find the flaw in this perpetual motion idea?

Wednesday, June 15, 2011

4 Comments

A fixed magnet sits at the bottom of a hollow, non-conductive cylinder with its north pole turned upward (into the cylinder). Through a slot near the cylinder’s bottom, another magnet is inserted with its north pole turned downward. Magnetic repulsion pushes the two magnets apart. Since the bottom magnet is fixed, the other magnet must [...]

Can you find the flaw in this perpetual motion idea?

Tuesday, June 14, 2011

4 Comments

A fixed magnet sits at the bottom of a hollow, non-conductive cylinder with its north pole turned upward (into the cylinder). Through a slot near the cylinder’s bottom, another magnet is inserted with its north pole turned downward. Magnetic repulsion pushes the two magnets apart. Since the bottom magnet is fixed, the other magnet must [...]

Anyone think that they could help with some science questions?

Friday, May 13, 2011

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8. A transformer has a primary coil with 500 turns and a secondary coil with 250 turns. If the output voltage is 240 volts, what is the input voltage? (1 point) 96 volts 120 volts 480 volts 500 volts 9. How are fossil fuels used to generate electrical energy? (1 point) Heat from burning fuel [...]

Physical Science Help!!!!! Can someone check it for me?

Thursday, May 12, 2011

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1. Which of the following statements describes the interaction between magnetic poles? (1 point) Like poles attract each other. *Like poles repel each other, and opposite poles attract each other. Opposite poles repel each other. Like poles attract each other, and opposite poles repel each other. 2. Which of the following statements is true about [...]

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

Friday, May 6, 2011

4 Comments

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

1 Comment

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 [...]