describe an activity to show that magnetic field can be produced by a straight current carrying conductor
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Very simple material req = A INSULATED COPPER WIRE . A compass .a battery .knowledge of right hand thumb rule ... after all see this activity http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magcur.html ..hope this help.
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)Take a battery,rheostat,an ammeter,a plug key and a long straight thick copper wire.
2)Insert the thick wire through the centre,normal to the plane of a rectangular cardboard.Take care cardboard is fixed and does not slide up or down.
3)Connect the copper wire vertically between the point X and Y in series with battery,plug and key.
4)Sprinkle some iron filling uniformly on the cardboard.
5)Keep the variable of the rheostat at a fixed position and note the current through the ammeter.
6)Close the key so that a current flows through the wire.Ensure that the copper wire placed between the points remain vertically straight.
7)Gently tap the cardboard a few times.Observe the pattern of the iron filling.They will show a pattern of concentric circles around the copper wire.
8)Place a compass at a point over a circle.Observe the direction of the needle.
9)The direction of the north pole of the compass needle would give the direction of the field lines produced by the electric current through the straight wire at point.
HOPE IT HELPS YOU
PLZZ MARK MY ANSWER AS A BRAINLIST....
2)Insert the thick wire through the centre,normal to the plane of a rectangular cardboard.Take care cardboard is fixed and does not slide up or down.
3)Connect the copper wire vertically between the point X and Y in series with battery,plug and key.
4)Sprinkle some iron filling uniformly on the cardboard.
5)Keep the variable of the rheostat at a fixed position and note the current through the ammeter.
6)Close the key so that a current flows through the wire.Ensure that the copper wire placed between the points remain vertically straight.
7)Gently tap the cardboard a few times.Observe the pattern of the iron filling.They will show a pattern of concentric circles around the copper wire.
8)Place a compass at a point over a circle.Observe the direction of the needle.
9)The direction of the north pole of the compass needle would give the direction of the field lines produced by the electric current through the straight wire at point.
HOPE IT HELPS YOU
PLZZ MARK MY ANSWER AS A BRAINLIST....
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