Question

explain the following with references to the magnetic field around a straight conductor carrying current I tracing the pattern of magnetic field ii increasing the I intensity of magnetic field iii reserving the direction of electric current​

Answer 1

Answer:

answer

Explanation:

The pattern of magnetic field lines around a straight conductor carrying current can be described by the following activity.

(i) Insert vertically a long straight wire carrying an electric current so that it passes through the centre of a horizontal piece of plastic board as shown in figure.

(ii) Take care that the plastic board is fixed and does not move up and down. Now, sprinkle some iron filings onto the plastic board to show the shape of the field.

(iii) You will notice that the iron filings get arranged round the wires in the shape of circles. This is due to the reason that the magnetic field lines around the current carrying straight conductor are circular The iron filings align along these field lines.