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Question

An electric current predominantly produce............... field around it.

A
magnetic
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B
electric
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C
gravitational
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D
all the above
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Solution

The correct option is A magnetic
Oersted's law states that a steady electric current creates a magnetic field around it. For a current carrying wire
  • The magnetic field lines encircle the current-carrying wire
  • The magnetic field lines lie in a plane perpendicular to the wire
  • If the direction of the current is reversed, the direction of the magnetic force reverses.
  • The strength of the field is directly proportional to the magnitude of the current.
  • The strength of the field at any point is inversely proportional to the distance of the point from the wire.

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