If a conductor is rotated in earths magnetic field then will the electricity get produced in the conductor?

Question

If a conductor is rotated in earths magnetic field then will the electricity get produced in the conductor?

Answer 1

Yes.  But the induced voltage will be very slight.  It may be measurable with sensitive instruments, but I think it would have no practical value as a generator.  It would be much more practical to use the much greater magnetic field of a permanent magnet.

Experiments have been done in which the space shuttle dragged a very long, thin loop of wire through the earth's magnetic field to generate electricity.  The speed of the shuttle and the size of the loop were great enough (in theory) to generate electricity in useful amounts.  I think the experiments were eventually abandoned due to technical problems.

Answer 2

i think d answer is no

Answer 3

Yes. Remote sensing devices called flux valves use this principle to operate a gyro stabilized compass. A current is passed through a coil at high frequency, this causes a fluctuation of the Earth's magnetic field, as the field collapses back it induces a current in the flux valve.

Answer 4

Yes. In fact I remember a demonstration of this in my school physics class. It was a big coil that you could rotate very quickly.

This has been proposed and tested as a means of generating power in space, if you have a long wire strung between two satellites, it will generate an electric current as it cuts through the earth's magnetic field. The return path for the current is through space, which conducts electricity quite well because of the ions in it (in the vicinity of the earth at least).