Answer:
A. 600 BC - Electric Charge
Dr William Gilbert
- He investigated the reactions of amber and magnets and first recorded the word 'Electric' in a report on the theory of magnetism
B. 1820 - Electromagnetism, Current
Hans Christian Oersted
- In 1820, a physicist Hans Christian Oersted, learned that a current flowing through a wire would move a compass needle placed beside it. This showed that an electric current produced a magnetic field.C. 1830 - Inductance
C. In 1830, Joseph Henry (1797-1878)
- discovered that a change in magnetism can make currents flow, but he failed to publish this.
D. 1855 - Electromagnetic Induction
- Michael Faraday (1791-1867) an Englishman, made one of the most significant discoveries in the history of electricity: Electromagnetic induction. His pioneering work dealt with how electric currents work.
