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Worksheets

Electronic components

Total questions: 22

Worksheet time: 14mins

Name
Class
Date
1.

This component limits the flow of current

a)

Capacitor

b)

Resistor

c)

Transistor

d)

Diode

2.

A - - - - - - - - - stores electrical energy in an electric field

a)

Capacitor

b)

LED

c)

Thermistor

d)

Transistor

3.

A small electronic device used in a circuit as an amplifier or switch is a - - - - - - - - - -

(a)  

4.

Allows current to flow in only one direction

a)

Resistor

b)

LED

c)

Diode

d)

Capacitor

5.

A semiconductor which glows when a voltage is applied

a)

Transistor

b)

Diode

c)

Battery

d)

LED

6.

The central processing unit that is generally made from a single integrated circuit.

a)

Capacitor

b)

Microprocessor

c)

LED

d)

Transistor

7.
a)

Light bulb

b)

Transistor

c)

Resistor

d)

LED

8.

What is this component?

(a)  

9.
a)

LED

b)

Transistor

c)

Diode

d)

Resistor

10.

a)

Microprocessor

b)

Resistor

c)

Transistor

d)

Diode

11.

The picture above are all an example of a - - - - - - - - -

(a)  

12.

This is a picture of a - - - - - - - - - - - - - -

a)

Transistor

b)

Microprocessor

c)

LED

d)

Resistor

13.

How do you determine a resistor value?

a)

The value is printed on the side

b)

You read a code off the component

c)

Coloured bands round the body

d)

You guess

14.

The value of a capacitor is measured in - - - - - -

a)

Ohms

b)

Volts

c)

Amps

d)

Farads

15.

The band round the body of a diode denotes the - - - - - - - - terminal

(two answers for this question).

a)

Positive

b)

Negative

c)

Anode

d)

Cathode

16.

The dot on the microprocessor shows .....

a)

Pin 1

b)

Pin 48

c)

+ volts

d)

- volts

17.

The long leg on an LED denotes the

- - - - - - - - terminal.

a)

Negative

b)

Positive

c)

It doesn't matter

18.

This symbol to BS3939 represents a?

a)

Diode

b)

Capacitor

c)

LED

d)

Resistor

19.

This symbol drawn to BS3939 denotes a what?

a)

Transistor

b)

Resistor

c)

Capacitor

d)

LED

20.

This standard symbol shows a

- - - - - - - - -

(a)  

21.

The circuit symbol is a?

a)

Transistor

b)

Diode

c)

LED

d)

Microprocessor

22.

What is the circuit symbol for a microprocessor?

a)
b)
c)
d)