An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of insulated wire wound into a coil.
materials >coil,copper wire,iron.
ADVANTAGES The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding.
A solar vehicle is an electric vehicle powered completely or significantly by direct solar energy. Usually, photovoltaic cells contained in solar panels convert the sun’s energy directly into electric energy.
we had performed a activity regarding the solar car
first find a D C MOTOR , A BASE , THREE WHEELS , TWO WIRES , SOLAR PANEL .
NOW TAKE THE BASE AND ATTACH IT TO THE GAP NEAR THE FRONT TIRE .
JOIN THE WHEELS TO IT .
CONNECT THE SOLAR PANEL ABOVE .
ATTACH THE WIRES AS NEGATIVE AND POSITIVE TERMINALS .
CHECK ALL CONNECTIONS FIRST .
LEAVE IT IN THE SUN AND WATCH IT MOVE !!!!!!!!!!!! .
CAUTION ! : THIS ACTIVITY SHOULD BE DONE IN THE PRESENCE OF THE sun