2007-10-31 06:12:27 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
What if you rape a coil(copper or something) around the magnet and connect the coil to a wire that leads to a light bulb, would the light bulb light up then?
2007-10-31 06:23:48 · update #1
What would cause the bulb to light up? You need energy to cause a current to flow.
A magnetic field may be able to influence electrons in a conductor but that is not the same as current. It the magnet is spinning, however, you get an alternating magnetic field. Put a coil around it and the magnet will alternatively pull electron towards its southpole. So electrons would be moving to and fro as the magnet spins. Connect a small light bulb or a voltmeter to the conductor and you can see that electricity is being generator. This is a simpe example of a generator. In most generators it is the coil of wire that is spinning however. Not the magnet.
2007-10-31 06:23:18 · answer #1 · answered by DrAnders_pHd 6 · 1⤊ 0⤋
Sometimes light Bulbs Just wont light up.And if you connect a coil or magnet why doesnt it light Up? Well experiment just shows that it doesnt light up.
2007-10-31 13:30:13 · answer #2 · answered by goring 6 · 0⤊ 0⤋
A light bulb lights up due to electrical current flow (..movement of electrons along some conductor..) Magnetism is not a movement of electrons but rather a force.
2007-10-31 13:20:09 · answer #3 · answered by Anonymous · 0⤊ 1⤋
magnetism in a permanent magnet is the result of the configureation of STATIONARY atoms. in order for electrons fo flow through a wire to light a bulb, they have to be driven by an electric potential and move in the line itself. magnets dont cause movement of electrons (except when they change, think motor...)
2007-10-31 13:19:27 · answer #4 · answered by nacsez 6 · 0⤊ 0⤋