Cybersoftware
Educational software

 |  | Mobile 07756192717 (11am-3pm) | |
 
 
Language cds
 Key stage 123
Kids cds
Microsoft Training |
Gcse cd-roms
Web Design
Cards + Crafts
 

GCSE  Electronics 
GCSE Electronics - Electronic components identification

One  favored GCSE electronics question seems to the identification of electronic components and the use that they can be put to.
Below is a list of the electronic components that have been used.
It is also useful to know whether the component is an input, output or processing component

Needed for exam (in red)



Thermisters
This is the cct diagram for  a thermister

A thermister is a temperature sensitive devise 
Input sensing device subsystem

Thermisters have a positive or negative temperature coefficients
Negative temperature coefficient equates to a decrease in resistance when the temperature increases
Positive  temperature coefficient equates to a increase in resistance when the temperature increases
 



LEDS
The LED symbol is shown far right 

LEDs are an output subsystem

Can be used connected to the output on digital chips to indicate whether the output is 0 or 1.
 



Variable Resistor 
The variable resistor symbol is shown below

There is more to variable resistors then just identification of the symbol and uses of the devices required in the exam.

Variable resistors can be carbon film composition or wire wound in construction.

Wire wound resistors can take a higher wattage than carbon  resistors, these are the 2 main construction types that the amateur electronics engineer will encounter.
 



LDR
Light dependamt resistor 

Symbol

When light falls on a LDR the resistance falls, this can be used to trigger a swiching device.
The device is an input subsystem


Lamp

Symbol

A lamp is a device that emits light when a cuurent is placed through it 

The device is an output subsystem.
 


 

 

 

Cybersoftware educational software - key stage 1,2 and 3 and gcse
Electronics Help 
Soldering
Ohmn Law
555 timer
555 timer (2)
Electronics cd
Comparitor
Components
Measurements
Color codes
Thyristors
Passmaster GCSE
Passmaster (2)
Letts GCSE
Europress GCSE
GCSE maths sale
GCSE english
GCSE maths
GCSE science
GCSE electronics
GCSE HELP
Maths Games
Educational
GCSE cd-roms
Microsoft training
Games
Keystage 123
Kids Software
Miscellaneous
Reader rabbit
Assistance
Terms of sale
Contact us
Payment
Overseas

bottom  
Assistance
Links
Management
Terms of sale
Contact us
Payment
Assistance
M Martin, 
50, Leads Road, 
HULL 
HU7 0BY
To pay immediately with your debit card, (up to £200.00), click on the NOCHEX button on payment page of the shopping cart
sitesforteachers.com
Parents in touch - the education and information site for parents
sitesforteachers.com

Educational supplier - cybersoftware for computer software


--------------------------------------

-------------------------------------
 
 

eXTReMe Tracker

  [an error occurred while processing this directive]