Answer:Michael Faraday & Joseph Henry
Step-by-step explanation:
Michael Faraday & Joseph Henry both discovered Electromagnetic induction Working independently in Britain and United states respectively.Both discover that current could be induced in a wire by moving a magnet in or out of a coil of wire.Henry develop the electromagnet in a practical device and laid the foundation of Electrical telegraph invented by Samuel F. B. Morse and Sir Charles Wheatstone, separately.