Figurative
speaking, for a straight conductor, Right Hand Rule states that when you grasp
the conductor with the right hand so that the thumb point in the direction of
conventional current, the fingers circling the conductor then point in the
direction of the magnetic lines of force around the conductor.
speaking, for a straight conductor, Right Hand Rule states that when you grasp
the conductor with the right hand so that the thumb point in the direction of
conventional current, the fingers circling the conductor then point in the
direction of the magnetic lines of force around the conductor.
The
magnetic field of a conductor can further still be concentrated by winding a
conductor around a cardboard tube as shown in figure 1 above to form a
solenoid. Because the current in the adjacent turns of the solenoid is in the
same direction around the circumference of the coil, the solenoid behaves as a
single loop of a stranded conductor, each strand carrying a current equal to
the actual solenoid current. This will result in a magnetic field around the
solenoid having the pattern shown in figure 1 above. Since this magnetic field
pattern is similar to that of a bar magnet, we can meaningfully say that we
have produced an electromagnet.
magnetic field of a conductor can further still be concentrated by winding a
conductor around a cardboard tube as shown in figure 1 above to form a
solenoid. Because the current in the adjacent turns of the solenoid is in the
same direction around the circumference of the coil, the solenoid behaves as a
single loop of a stranded conductor, each strand carrying a current equal to
the actual solenoid current. This will result in a magnetic field around the
solenoid having the pattern shown in figure 1 above. Since this magnetic field
pattern is similar to that of a bar magnet, we can meaningfully say that we
have produced an electromagnet.
Applying
the Right Hand Rule for direction of magnetic lines of force around a straight
conductor to a solenoid we obtain the Right Hand Screw Rule.
the Right Hand Rule for direction of magnetic lines of force around a straight
conductor to a solenoid we obtain the Right Hand Screw Rule.
Grasp
the solenoid with the right hand so that the fingers follow the conventional
current direction around the circumference of the magnetic lines of force
through the centre of the solenoid.
the solenoid with the right hand so that the fingers follow the conventional
current direction around the circumference of the magnetic lines of force
through the centre of the solenoid.