| Tag Archive | magnet

Urgent question about electric generators?

Friday, September 2, 2011

So does an electric generator produce current when a magnet is making contact with the coil, or is it just the magnetic field? Do generator run out, or go bad (say because the magnet loses its magnetism, or the coil wears down)? Does it matter what the coil is made of (nickel, copper, aluminum, etc.)

Are Magnetic Generators Effective?

Thursday, September 1, 2011

1 Comment

I’ve been doing some research trying to find out if magnet generators are effective, and if so where is the best place to purchase the specs to make one. Supposedly, you CAN build them yourself with very little investment, and they will generate electricity throughout your whole house. I’m just hoping to find someone who [...]

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 [...]

Please give right answers. My life depends on it!!?

Sunday, June 19, 2011

4 Comments

1: If you doubled the number of coils and doubled the voltage, what would be the increase in magnetic strength? It would remain the same, since 2 / 2 = 1 It would be 4 times as strong, since 2 x 2 = 4 You can’t increase magnetism by increasing the voltage 2: What causes [...]

please help?

Saturday, June 18, 2011

1 Comment

1: If you doubled the number of coils and doubled the voltage, what would be the increase in magnetic strength? It would remain the same, since 2 / 2 = 1 It would be 4 times as strong, since 2 x 2 = 4 You can’t increase magnetism by increasing the voltage 2: What causes [...]

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 [...]

science work help?

Thursday, June 9, 2011

1 Comment

1: If you doubled the number of coils and doubled the voltage, what would be the increase in magnetic strength? It would remain the same, since 2 / 2 = 1 It would be 4 times as strong, since 2 x 2 = 4 You can’t increase magnetism by increasing the voltage 2: What causes [...]

When you make electricity, where exactly do the electrons come from?

Sunday, June 5, 2011

7 Comments

This was a question from my children and I’m not sure of the answer when I think about it. I know that if you spin a magnet in an magnetic field (or ferrous material work too?) that you’ll produce electricity. Electricity is the flow of electrons. If I think of the large generators that spin [...]

help fast please thanks if you help?

Saturday, June 4, 2011

1 Comment

1: If you doubled the number of coils and doubled the voltage, what would be the increase in magnetic strength? It would remain the same, since 2 / 2 = 1 It would be 4 times as strong, since 2 x 2 = 4 You can’t increase magnetism by increasing the voltage 2: What causes [...]