Page 6 - 10-phy-15 Electromagnetism
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15. Electromagnetism eLearn.Punjab
Magnetic field of a solenoid
A coil of wire consisting of many loops is called a
solenoid. The field from each loop in a solenoid
adds to the fields of the other loops and creates
greater total field strength (Fig.15.4).
Animation 15.4 : Magnetic field
Source & Credit : Dyarrow
Electric current in the solenoid of wire produces
magnetic field which is similar to the magnetic field of a
permanent bar magnet.
Fig. 15.4: Magnetic field due to a solenoid
The type of temporary magnet, For your Information
which is created when current
flows through a coil, is called an
electromagnet.
When this current-carrying solenoid is brought close
to a suspended bar magnet, one end of the solenoid
repels the north pole of the bar magnet. Thus the
current-carrying solenoid has a north and a south pole
and behaves like a magnet.
6 V: 1.1
