Cause of Lorentz Force

forward-bias

The right hand rule states that, to find the direction of the magnetic force on a positive moving charge, the thumb of the right hand point in the direction of v, the fingers in the direction of B, and the force (F) is directed perpendicular to the right hand palm.

1. F = qvB*sinθ
2. Note: The direction of the magnetic field B is defined as from N to S. Also, the direction of the electrical charge is from (+) to (−).
3. F = BIL.
4. Note: Remember that the convention for current direction in the wire is opposite the direction of the motion of the electrons.

The inertia of the rotating coil carries it through half of a turn, past the insulating paint. When the electric current starts to flow again, the twisting force is in the same direction as it was before. The coil continues to rotate in the same direction.

• The number of turns of the coil:As the number of turns increases, the magnitude of the induced current increases.
• The speed of the relative motion of the conductor and the magnetic field: As the speed of the relative motion of the magnet increases, the magnitude of the induced current increases.

The induced voltage produces an induced current if the conductor is connected in a complete circuit. As with all currents, the induced current creates a magnetic field around itself. Note that this magnetic field opposes the original change.

For 133 kV Power lines you have to maintain 100 feet distance. For 230 kV Power lines you have to maintain 150 feet distance. For 345 kV Power lines you have to maintain 250 feet distance.

Most scientists believe that exposure to the low-level EMFs near power lines is safe, but some scientists continue research to look for possible health risks associated with these fields. If there are any risks such as cancer associated with living near power lines, then it is clear that those risks are small.