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Ckt Sudoku

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.
If you have three 1.5V batteries in series, what would be total voltage be? 
a)
3.4 V
b)
4.5 V
c)
1.5 V
d)
3 V
2.
What does this picture show?
a)
A multimeter
b)
A breadboard
c)
A circuit board
d)
A resistor
3.
What electronic component allows current to flow in one direction only? 
a)
Resistor
b)
LED
c)
Didode
d)
Switch
4.
What is another name for electrical shock?
a)
Volt
b)
Jolt
c)
Bolt
d)
Colt
5.

If the PIV rating of a diode is exceeded, ………………

a)

the diode conducts poorly

b)

the diode is destroyed

c)

the diode behaves like a zener diode

d)

none of the above

6.
What are the color codes for a 470k ohm resistor?
a)
Yellow, Violet, Yellow
b)
Orange, Grey, Orange
c)
Yellow, Violet, Orange
d)
Orange, Grey, Yellow
7.
If you increase the resistance of a circuit, what happens?
a)
Current decreases
b)
Current increases
c)
Electrons disappear
d)
Bulbs get brighter
8.

What is the brains of the Arduino Uno?

a)

Power LED

b)

Power jack

c)

ATmega Microcontroller

d)

Digital Pins

9.

Which of the following electronic components does not have polarities?

a)

LEDs

b)

Diodes

c)

Dry cells

d)

Push buttons

10.

What material is added into solder to stop oxygen contaminating the join?

a)

Solder

b)

Silver

c)

Lead

d)

Flux

11.

What is the invention of Jack Kilby in 1958?

a)

PCB

b)

Integrated Circuit

c)

Transformer

d)

Electroscope

12.

What is the name of telecommunication company that invented the first mobile phone in 1973?

a)

Nokia

b)

Samsung

c)

Motorola

d)

LG

13.

Which one of the following graphs correctly represents Ohm’s law, where V is the voltage and I is the current?

a)
b)
c)
d)
14.
As the distance between windings increases, inductance ____________
a)
increases
b)
stays the same
c)
decreases
d)
expands
15.
The purpose of a transformer is to ______________.
a)
Transfer power
b)
Transfer voltage
c)
Transfer current
d)
Transfer resistance
16.

What type of transformer is this?

a)

iron core single output

b)

air core single output

c)

iron core double output

d)

air core double output

17.
What is the purpose of a resistor?
a)
control current flow
b)
allow current flow
c)
prevent current flow
d)
allow heat to build up
18.
Electricity flows from __ charge to __ charge
a)
positive, neutral
b)
neutral, negative
c)
negative, positive
d)
positive, negative
19.
Path of least resistance is when electricity...
a)
goes the easiest route
b)
goes the hardest route
c)
goes back to the battery
d)
turns on the light instead of the motor
20.
I compared a diode to a...
a)
a stop sign
b)
a switch on top of a street light
c)
one way street sign
d)
alternating current

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