Magnetic field due to a current in a solenoid , Force on a current-carrying conductor in a magnetic field, Fleming’s left hand rule, electromagnet
Magnetic field due to a current in a solenoid Solenoid:-- Solenoid is a coil of many circular turns of insulated copper wire which are wrapped closely in the shape of a cylinder is called a solenoid. Magnetic field lines of the magnetic field near current carrying solenoid. A solenoid having current is used to magnetise the rod inside it The magnetic field around the current carrying solenoid is similar to the magnetic field around the bar magnet. One end of the solenoid behaves as (or act as) magnetic north pole Other end of the solenoid behaves as (or act as) the magnetic south pole. In the solenoid , The magnetic field lines are In the form of the parallel straight lines. This shows that magnetic field is same at every points insides the solenoid. That is , the magnetic field is uniform inside the solenoid. A electromagnet consists of a core of soft iron wrapped with a coil of insulated copper wire When s current is