Question

orlant component in electric fans, desert coolers, air
machines, computers, MP3 players, etc. Almos
Tric motor to transform electrical energy into mechanical energy
4.8.4 Applications
The electric motor is used as an important com
refrigerators, mixer and grinders, washing machine
used in a factory employs an electric motor
CHECK POINT 1
1. State any two important properties of a bar magner
2. Can north and south poles of a bar magnet be separa
3. Name the factors which affect the strengt
4. Does magnetic field along the axis of a current
5. Name few devices in which an electromagnet is usea.
gnet be separated by some means?
strength of magnetic field at a point near a straight current canying
of a current carrying solenoid depend on its dimensions
4.9 ELECTROMAGNETIC INDUCTION
urrent in a coil placed
4.9.1 Definition
Electromagnetic induction is the phenomenon
in a region where the magnetic field changes with tin
is the phenomenon of the production of an induced current in a coil
araday was han
4.9.2 Discovery of Electromagnetic Induction
an if a conductor is moved inside
In English physicist Michael Faraday thought that what wou
bagnetic field or a magnetic field is continuously changed aro
vagnetic field is continuously changed around a fixed conductor. Faraday was
be set up between the ends of the cond
that in such cases, a potential difference should be set up between the
day performed a series of experimen
o consequently, a current should be established. With this aim, Faraday performed a se
finally discovered the phenomenon of electromagnetic induction.
on of electromagnetic ind​

Answer 1

Answer:

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