Faraday1791September 22nd was born in a poor blacksmith family in Newington, Surrey, and only attended primary school. 183 1 year, he made a key breakthrough in the field of electric field and changed human civilization forever.
Michael faraday is a student and assistant of the famous British chemist David. His discovery laid the foundation of electromagnetism and was a pioneer of james clerk maxwell. Faraday first discovered electromagnetic induction on1831/kloc-0+017, and then obtained the method of generating alternating current. 183 1 year1year1October 28th Faraday invented the disc generator, which is the first generator created by human beings. 1867 On August 25th, Faraday died at the age of 76.
Introduction to the concept of electric field
Electric field is a special substance that exists in the space around charge and constantly changes its magnetic field. This substance is different from ordinary objects. Although it is not composed of molecular atoms, it is a special substance that exists objectively and has the objective properties of force and energy that ordinary substances have. The essence of electric field force is that the electric field acts on the charge put into it, which is called electric field force. The essence of electric field energy is that when the charge moves in the electric field, the electric field force does work on the charge, indicating that the electric field has energy.
Maxwell put forward the theory that "the changing magnetic field will excite an electric field in the space around it, so that the closed loop will produce induced electromotive force and induced current", which is called eddy current electric field. The electric field line of the induced electric field is closed, with no starting point and ending point, and the closed electric field line surrounds the changing magnetic field.
Reference to the above content: Baidu Encyclopedia-michael faraday