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WorksheetsВикторина по электрическим компонентам
Total questions: 13
Worksheet time: 8mins
what is the unit of capacitance?
Faradei (F)
Farad (F)
Ohm
Amper (A)
What does LED stand for?
Light Electrical Device
Low Energy Diode
Light Emitting Diode
Long-lasting Electric Device
What is the symbol of transistor on the circuit?
Измерять напряжение
Контролировать ток и напряжение
Увеличивать ток
Хранить электрическую энергию
What does transistor do?
stores and releases electrical energy
converts electricity into a light
It controls the flow of electric current using a small input signal.
can turn current on or off, acting like a switch
What type of transistor has three terminals?
Transistor PNP
TransistorNPN
Capacitor
all types of transistors (pnp and npn)
What is the role of the Base in an NPN transistor?
To supply power to the circuit
To control the flow of current between Collector and Emitter
To store charge like a capacitor
To act as a resistor
What is the on the picture?
LED
LDR (photoresistor)
transistor
capacitor
What component is on the picture?
potentiometer
variable resistor
Transistor
Resistor
In an electronic circuit, what does a capacitor do?
A capacitor measures electrical resistance.
A capacitor stores and releases electrical energy.
A capacitor amplifies electrical signals.
A capacitor converts AC to DC.
What is true about ceramic capacitor?
the one we use in the lesson has a polarity (+ and -)
it stores energy and gives it simultaniously
it has this symbol
everything is true
Will the LED light up?
I don't know
LED won't light up, you should invert polarity
yes, green LED will light up
there is no LED on the diagram
What happens to the LED when the capacitor discharges?
blinks
It gradually fades away.
It doesn't glow.
It glows constantly
Which element is used to adjust brightness or volume?
Transistor
Resistor
Potentiometer
Capacitor
