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WorksheetsElectronics Component
Total questions: 20
Worksheet time: 11mins
What is a circuit?
A path in which electrons from a voltage or current source flow.
The rate of flow of electric charge past a point or region.
What is a transformer?
A region around a magnetic material or a moving electric charge within which the force of magnetism acts.
Any device for converting mechanical energy into electrical energy by electromagnetic induction
A device used to transfer electric energy from one circuit to another
What is an example of an input?
Sound
LED light
Microcontroller
Push button
How many electrons are there in the outer most shell of Silicon
5
4
3
8
what type of device is this?
it is a transistor
it is a diode
it is an amplifier
it is a power supply
what is this?
it is a transistor
it is a diode
it is a capacitor
it is a resistance
what is a transistor?
a current amplifier
a rectifier
a power supply
an adder device
Diagram below shows a p-n junction diode.
When the diode is in reverse biased, the depletion layer widens because
the electrons and holes are pulled away from
the p-n junction
the electrons from the n-type are pulled across
the p-n junction
the negative charges flow from the negative
terminal to the p-type semiconductor
the positive charges flow from the positive
terminal to the n-type semiconductor
The following circuit diagrams show four diodes connected to an a.c power supply.
Which circuit will make the bulb lights up the brightest?
Diagram 24 shows four diodes which are connected to form a rectifier. Which wave pattern is produced on the C.R.O. screen?
What is the symbol for n-p-n transistor?
Which circuit will light up the bulbs?
Identify the electronic symbol.
Diode
Photodiode
Reflective diode
Light Emitting Diode
