When an electric current is passed through a conductor, an magnetic field is created around the conductor. This is called electromagnetism. The strength of an electromagnet depends upon the quantity of current passing through the conduct. If we increase the intensity of current, the magnetic field around the current carrying conductor also increases. If the current is zero, then the magnetic field is also zero. The direction of an electromagnetic can be found by using right hand rule. Hold the current carrying conductor in your right hand. If the stretched thumb indicates the direction of current , then the curl fingers denote the direction of magnetic field. Moreover, the direction of electromagnetic depends upon the direction of electric current.
