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Real llife Application ( HAZIQAH 4 SSCZ) - Coggle Diagram
Real llife Application ( HAZIQAH 4 SSCZ)
Detection
:check: compass is a simple magnetic instrument
burglar alarm
:check: contact switch, which responds to
changes in the environment
:check: sends a signal to a noisemaking device
alarm is activated
:check: respond to any change in the
magnetic field
:check: slides open the door thus breaking the connection between magnet and metal
burglar alarms may vary in complexity
:check: using microwaves or infrared rays
:check: application of magnetism in home security
larger scale
:check: magnetometers used by astronomers
:check: detect the strength
:check: the direction of magnetic fields surrounding
Earth and other bodies in space
MRI
:check: without a surgical knife or x-rays
:check: make intensive diagnoses
Projection Sound
a microphone
:<3: a capacitor, a system for storing charges
:<3: microphone’s diaphragm, which, when it is hit by sound waves
:<3: vibrates at the same frequency
:<3: Current flows back and forth between the diaphragm
loudspeaker
:fire: contains a circular permanent magnet
:fire: Current enters the speaker ultimately from the microphone
:fire: alternating at the same frequency as the source
:fire: enters the coil, this current induces an alternating magnetic field
:fire: causes the coil to vibrate
:fire: the latter reproduces sounds generated at the source
A car horn
:check: create sound by means of vibration
:check: create sound by means of vibration
:check: this in turn depresses an iron bar that passes through an
electromagnet
:check: bar moves up and down within the electromagnetic field, causing the diaphragm to vibrate
:check: producing a sound that is magnified
greatly
Record & Read data
recording a tape
:fountain_pen: whether a stereo master of a conversation
:fountain_pen: sound comes through a microphone in the form of alternating current
:fountain_pen: a small electromagnet whose magnetic field extends over the section
:fountain_pen: this information becomes embedded on the cassette tape
:fountain_pen: through a process of magnetic alignment not so different
:fountain_pen: process described earlier for creating a permanent magnet
The disk drive
:red_flag: receives electronic on-off signals from the computer
:red_flag: translates these into magnetic codes
:red_flag: translates these into magnetic codes
:red_flag: records on the surface of a floppy disk
:red_flag: includes two electric motors
:check: a head motor, which moves the
computer's read-write head across the disk
:check: a disk motor, which
rotates the disk at a high speed
:check: Third motor
:<3: a stepper motor, ensures that the drive turns at a
precise rate of speed
Maglev Train
:star: activate train tracks with a strong
electromagnetic field,
:star: might be possible to "levitate" an entire train
:star: using superconducting
coils with strong currents to create a powerful magnetic field
:star: The field in turn created a repulsive force capable of lifting a train several inches above a railroad track