Conventional current is the flow of positive charge. The charge flows from postive to Negative. However, in reality electrons are being flowing in the oppositive direction.
Electronn current is when electrons (or the negative charge) are flowing from positive to negative.
The Right Hand Rule is important because it shows the direction of the magnetic field aoudn a current carrying conductor.
By putting your thumb upright, is shows the currents direction. The direction that the fingers curl show the direction of the magnetic field. The concentric cirlces of the magnetic field aorund a current carrying wire can be labeled with dots or crosses. Solenoids is the wire wound as a helix around a metallic core. When an electrical current is passed through it, it creates a magnetic field. A bar magnet is similiar to the field shape of a solenoid madnetic field. The field can increase with greater current, more turns of wire, and soft iron core. When using the right hand rule for a solenoid, the thumb must point to the north pole.
