In the previous video we explained
the concept of magnets, the magnetic properties of materials,
and how to make magnets.
One way of making magnets that we know of
is by flowing electric current
or commonly known as electromagnets
In modern times, the use of electromagnetic devices
has been found in many types of electronic devices.
In this video we will discuss the benefits of electromagnetism
in daily life
For more details, watch until the end of the video
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Electromagnetic effects are often used by
people in their daily lives
Some applications of electromagnets
can be found on electric bells,
electric switches,
and Telephones
Just a reminder,
Electromagnetism is the principle of generating magnets using an electric current
 
or electric current coiled with iron core inside
The use of electromagnets in electric bells
Let's look at the electric bell diagram below
The electric bell has a coil and a spring iron anchor which is
joined by a bell beater
 
If this bell is connected with direct current,
the bell circuit must use an interruptor
as a circuit breaker
When the switch is closed,
Then the electric current will make the coil core become a magnet
So that the coil pulls
the iron anchor
which is joined by a bell beater
The bell ranger will touch the bell
until the bell rings
As soon as the anchor is pulled by the electromagnet
then the interuptor contact is cut off
So that the electric current from the battery is cut off
and the coil will lose its magnetic properties
so that the anchor returns to its original position
and is re-connected to an electric current
The process repeats itself
until the bell rings again and again
until the switch is released or disconnected
 
Utilization of electromagnet in an electric switch
The electric switch discussed in this video is
an electronic switch commonly called a relay
Relays use electromagnetic principles
to move the switch contacts
so that with a small electric current can conduct
electricity with greater voltage
This electronic switch works when
forming a closed circuit
The coil of wire will act as an
electromagnet that pulls the iron end of the switch
down.
After the iron is pulled down,
the other end of the iron will deviate
to the right
and push the stalk to the left
so that the left and right stems will
touch each other to conduct an electric current.
When the current flows,
the light will turn on.
The use of this switch is commonly found
on electric starter motors or cars,
switches on the horn button,
switches on motor and car lights,
and many other examples
Utilization of Electromagnet in Telephone
The telephone is a communication tool that is now displaced by the sophistication of cell phone features,
that is now displaced by the sophistication of
cell phone features,
so that the population is increasingly less
found in people's homes.
However, this tool is still often
encountered in offices because its existence
is still very important in communicating
internally and externally.
In general, cable phones have
a microphone and speaker section.
When there is talk or communication,
electrical energy flowing on the telephone wires
causes an electromagnetic effect
This electromagnetic effect is always fluctuating
so that it is able to vibrate
the flexible iron diaphragm on the speaker phone.
 
The vibrations on these speakers
finally vibrate the surrounding air
and give the effect of "hearing" for our ears
This is the end of the explanation in this video,
Thank you for watching,
give a like if this video is useful for you
 
 
 
