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Q.

Who found the magnetic effect of electric current?

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a

Thomas Edison

b

Alfred Nobel

c

Hans Christian Oersted

d

Albert Einstein

answer is B.

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Detailed Solution

  • Hans Christian Oersted was the first person who noticed the deflection of the compass needle every time the electric current was passed through the conducting wire. 
  • So, when an electric current passes through a wire, it behaves like a magnet. This is the magnetic effect of the electric current.

Therefore, we can say that Hans Christian Oersted discovered the magnetic effect of the electric current.

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Who found the magnetic effect of electric current?