with an activity show that current carrying conductor acts as a magnet
Answers
Explanation:
when a current is passed through a conducting wire a magnetic field is produced around it .
It can be perform by 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 hole.
- connect an ammeter (A) battery (B) rheostat(Rh) and a key (K).
- Sprinkle some iron feeling on the cardboard and pass an electric current through the wire by inserting the plug in the key .
- Gently tap the cardboard.
Observation:
-- It is observed that the iron filling get arrange along the concentric circle around the wire with dotted line.
-- If a small compass needle is placed anywhere on the board near the wire.
--- It Give the direction of magnetic field at that point which is marked by an arrow on the field line.
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Explanation:
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