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WorksheetsMain Electricity
Total questions: 25
Worksheet time: 19mins
In a plug, what colour is the live wire?
Blue
Green & Yellow
Brown
In a plug, what colour is the neutral wire?
Blue
Green & Yellow
Brown
In a plug, what colour is the earth wire?
Blue
Green & Yellow
Brown
What wire is label 2?
Live Wire
Neutral Wire
Earth Wire
What wire is label 1?
Live Wire
Neutral Wire
Earth Wire
What wire is label 4?
Live Wire
Neutral Wire
Earth Wire
What is the name of number 5?
(a)
8.
What does the power of an electrical appliance represent?
The amount of current that passes through the appliance
The rate at which it transforms energy
The speed at which it performs a task
The size of voltage that the appliance uses
7.
What is the main difference between a circuit breaker and a fuse?
A circuit breaker can be used to control electrical circuits
A circuit breaker can be reset whilst a fuse needs to be replaced
A fuse can be reset whilst a circuit breaker needs to be replaced
A fuse can be used to control electrical circuits
5.
If an appliance uses mains electricity at 230 V and the service manual for the appliance recommends using a fuse of 13 A, what is the power consumption it can safely use?
2020W
2550W
2990W
3520W
What is another Equation for Power?
Power = Potential Difference x Current
Power = Potential Difference / Current
Power = Current / Potential Difference
What are the Equations for Energy Transferred? Choose 2
Energy Transferred = Power x Time
Energy Transferred = Power / Time
Energy Transferred = Charge Flow x Potential Difference
Energy Transferred = Charge Flow / Potential Difference
An oscilloscope shows the current flow above what type of current is it showing?
DC
AC
Rectified Current
Non rectified current
DC
AC
rectified current
non rectified current
Remember: V=IR and P=VI
