Transcript who wants to be a millionaire – electricity quiz

Who Wants To Be
A Millionaire?
X’s
Edition
Question 1
What unit is resistance
measured in?
A
B
C
D
Gnomes Apples
Ohms
Bones
Stones
What is resistance
measured in?
A
B
C
D
Apple
Ohms
Bones
Stones
£100
Question 2
What instrument do we
use to measure voltage?
A
B
C
D
A metre stick
Your pals fingers
A voltmeter
An Ammeter
What instrument do we
use to measure voltage?
A
B
C
D
A metre stick
Your pals fingers
A voltmeter
An Ammeter
£200
Question 3
And how can we
measure current?
A
B
C
D
An Ammeter
An Ohmmeter
A Voltmeter
The 100 metre sprint
And how can we
measure current?
A
B
C
D
An Ammeter
An Ohmmeter
A Voltmeter
The 100 metre sprint
£300
Question 4
In a circuit if the Resistance
is increased what happens
to the current?
A
B
C
D
Increases
Decreases
Stays the same
No relationship
If the Resistance is
increased what happens to
the Current?
A
B
C
D
Increases
Decreases
Stays the same
No relationship
£500
Question 5
What is the formula that
relates Energy, Power and
Time?
A
B
C
D
E=P/t
E=PxtxR
E=t/P
E = Pxt
What is the formula that
relates Energy, Power and
Time?
A
B
C
D
E=P/t
E = Pxt / t
E=t/P
E = Pxt
£1,000
Question 6
How many joules are
there in a kilowatt-hour?
A
B
C
D
1000 x (60x60)
1000 x 60
60 x (1000 / 60)
1000 / (60x60)
How many joules are
there in a kilowatt-hour?
A
B
C
D
1000 x (60x60)
1000 x 60
60 x (1000 / 60)
1000 / (60x60)
£2,000
Question 7
Which one of these is NOT
a practical use of the
magnetic effect of current?
A
B
C
D
Motor
Relay
Heater
Bell
Which one of these is NOT
a practical use of the
magnetic effect of current?
A
B
C
D
Motor
Relay
Heater
Bell
£4,000
Question 8
What is the relationship
between Power, Voltage
and Current?
A
B
C
D
V=IR
V=IP
P=IR
P=IV
What is the relationship
between Power, Voltage
and Current?
A
B
C
D
V=IR
V=IP
P=IR
P=IV
£8,000
Question 9
What are the colours for
Live, Neutral and Earth in a
3 pin plug?
A Brown, Blue, Yellow/Green
B Blue, Brown, Yellow/Green
C Black, Red, Green
D Blue, Red, Yellow
What are the colours for
Live, Neutral and Earth in a
3 pin plug?
A Brown, Blue, Yellow/Green
B Blue, Brown, Yellow/Green
C Black, Red, Green
D Blue, Red, Yellow
£16,000
Question 10
What is the purpose of
the earth wire?
A
Carry current back to supply
B
Carry current to ground
C
Send current to live
D
Send current to neutral
What is the purpose of
the earth wire?
A
Carry current back to supply
B
Carry current to ground
C
Send current to live
D
Send current to neutral
£32,000
Question 11
What is the Power from a
device drawing 3A with a
Resistance of 100 ohms?
A
B
C
D
300 Watts
900 Watts
900 Joules
300 Joules
What is the Power from a
device drawing 3A with a
Resistance of 100 ohms?
A
B
C
D
300 Watts
900 Watts
900 Joules
300 Joules
£64,000
Question 12
To reverse the direction of
a motor we reverse the:
A
B
C
D
The Commutator
The Carbon Brushes
The Current or Field
The Field Coil
To reverse the direction of
a motor we reverse the:
A
B
C
D
The Commutator
The Carbon Brushes
The Current or Field
The Field Coil
£125,000
Question 13
Which of these appliances
has the lowest power
rating?
A
B
C
D
Electric Cooker
Hair Dryer
Curling Tongs
Electric Razor
Which of these appliances
has the lowest power
rating?
A
B
C
D
Electric Cooker
Hair Dryer
Curling Tongs
Electric Razor
£250,000
Question 14
4 Bulbs connected in Parallel
with a R of 11, 12, 13 and 14
ohms each Calculate their
Total R ?
A
B
C
D
3 ohms
4 ohms
51 ohms
52 ohms
4 Bulbs connected in Parallel
with a R of 11, 12, 13 and 14
ohms each Calculate their
Total R ?
A
B
C
D
3 ohms
4 ohms
51 ohms
52 ohms
£500,000
Question 15
In motors which component
reverses the current every
half turn?
A
B
C
D
Rotating Coil
Field Coils
Split ring Commutator
Graphite Brushes
In motors which component
reverses the current every
half turn?
A
B
C
D
Rotating Coil
Field Coils
Split ring Commutator
Graphite Brushes
£1,000,000