Question

describe an activity to demonstrate the direction of magnetic field generated around a current carrying conductor????....plese friends ...it's urgent....​

Answer 1

Answer:

Take a battery (12 V), a variable resistance (or a rheostat), an ammeter (0 - 5A), a plug key and a long straight thick copper wire. Insert the thick wire through the center, normal to the plane of a rectangular cardboard. Take care that the cardboard is fixed and does not slide up or down. Connect the copper wire vertically between the points X and Y, in series with the battery, a plug and key. Sprinkle some iron filings uniformly on the cardboard. Keep the variable of the rheostat at a fixed position and note the current through the ammeter. Close the key, So that current flows through the wire. Ensure that the copper wire placed between the points X and Y remains vertically straight. Gently tap the cardboard for a few times. Observe the pattern of the iron filings. You would find that the iron filings align themselves showing a Pattern of concentric circles around the copper wire. This represents the magnetic field around the current-carrying conductor. The direction of magnetic field changes on reversing the direction of the currentRead.

Answer 2

Answer:

1. Take a cardboard sheet.
2. make an arrangement of a current carrying circular loop.
3. put some iron filling over the cardboard and gently shake it.
4. you will observe a pattern acquired by the iron fillings.
5. Those are the magnetic field lines like that.

yellow lines in the figure represents the MFL.

hope it helps...