describe an activity to show that magnetic field is produced by an electric current flowimg through a circular coil of wire
Answers
Answer:A magnetic field is produced by an electric current flowing through a circular coil of wire. ... At the centre of circular wire,field lines become straight and perpendicular to the plane of coil. Right hand thumb rule is used to determine the direction of magnetic field produced due to current carrying circular wire.
Explanation:
Take a rectangular cardboard having two holes.
Insert a circular coil having large number of turns
through them, normal to the plane of the cardboard.
Connect the ends of the coil in series with a battery,
a key and a rheostat, as shown in Fig. 13.9.
Sprinkle iron filings uniformly on the cardboard.
Plug the key.
Tap the cardboard gently a few times. Note the
pattern of the iron filings that emerges on the
cardboard.