- #1
Masafi
- 65
- 0
A diagram shows a flexible copper wire attached to the terminals of a dry cell.
A strong circular magnet, 12 mm in diameter, is attached to the side of the cell. The interaction between the current in the wire and the magnetic field of the magnet causes the wire to levitate
i.e.
_____+
l
l [s n]
l____ -
The dashed and straight lines represents the copper wire attached to the 2 terminals, with a magnet attached in the middle of the cell.
Now the same thing is given, but the magnet reversed, as well as the terminals:
_____-
l
l [N S]
l____ +
Explain what would happen to the wire in the following arrangement.
The answer is:
Wire would levitate again
Two reversals cancel/applying Flemings Left Hand Rule
I don't understand what this means?
A strong circular magnet, 12 mm in diameter, is attached to the side of the cell. The interaction between the current in the wire and the magnetic field of the magnet causes the wire to levitate
i.e.
_____+
l
l [s n]
l____ -
The dashed and straight lines represents the copper wire attached to the 2 terminals, with a magnet attached in the middle of the cell.
Now the same thing is given, but the magnet reversed, as well as the terminals:
_____-
l
l [N S]
l____ +
Explain what would happen to the wire in the following arrangement.
The answer is:
Wire would levitate again
Two reversals cancel/applying Flemings Left Hand Rule
I don't understand what this means?