Question

Explain the activity showing the electric current carrying conductor

Answer 1

Explanation:

ACTIVITY:

Take a seat of smooth cardboard with a hole at its centre.

Place it horizontal and pass a thick copper wire vertically through the whole

Sprinkle some iron filling on the cardboard and pass an electric current through the wire by inserting the plug of key and gently tap the cardboard

It is observed that the iron filling get arrange along the circular around the wire as shown in figure dotted line

If a small compass needle is placed anywhere on the cardboard near the wire the direction in which the north pole of needle. Give the direction of magnetic field at that Point.

Thank you