Question

Draw the lines of force indicating field directions of the magnetic field around a straight wire carrying current​

Answer 1

Answer:

Take a thick straight conductor XY and pass it through the centre of a thick cardboard. Pass current through the conductor such that it flows from X to Y. Sprinkle some iron filings on the cardboard and gently tap. ... These concentric circles represent the magnetic field lines.

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Answer 2

Answer:

Magnetic field lines form in concentric circles around a cylindrical current carrying conductor. The direction of such magnetic field can be determined by using the "Right hand rule".