Download The ABC`s of electric energy and power

The ABC’s of Electric Energy and Power
Write ‘T’ for true and ‘F’ for False for the explanation of each term. If the
description is false, rewrite for correction. The last one is done for you.
Terms
Description
T or F
Ampere
The rate of current flow
____F
Brown
The colour of a live wire
____T
Coulomb
The unit of current
____F
Double insulation
Its symbol is two circles.
____F
Earth
This pin is connected to the case of an appliance. ____T
Fuse
A wire segment with a high melting point
____F
Galvanometer
An instrument used to detect a small current
____T
Hydroelectric
Generating electricity by water power
____T
Ions
Charge carriers in metals
____F
Joule
Ampere times volt
____F
Kilowatt hour
A practical unit of power
____F
Live
A wire in a mains cable that carries a direct voltage. ____F
Mains voltage
220 V, d.c.
____F
Neutral
This wire is blue in colour.
____T
Ohm
The unit of resistance
____T
Power
The rate of voltage drop
____F
Quartz
Some timing devices use this crystal.
____T
Resistance
The product of voltage and current
____F
Switch
A device for making or breaking the circuit
____T
Thermistor
An electric heating element
____F
Uranium
It is used in a fossil fuel power plant.
____F
Voltage
Energy or work done per unit current
____F
Watt
The unit of power
____T
X-ray
An electromagnetic wave
____T
Yellow
One of the colours in an neutral wire
____F
Zener diode
A special kind of diode with a low reverse
breakdown voltage
____T
True and corrected items
Terms
Description
Ampere
The unit of current
Brown
The colour of a live wire
Coulomb
The unit of charge
Double insulation
Appliance with two layers of insulation
Its symbol is two squares.
Earth
This pin is connected to the metallic case of an appliance.
Fuse
A wire segment with a low melting point
Galvanometer
An instrument used to detect a small current
Hydroelectric
Generating electricity by water power
Ions
Charge carriers in solutions
Joule
Coulomb times volt
Kilowatt hour
A practical unit of energy
Live
A wire in a mains cable that carries a high alternating voltage.
Mains voltage
240 V, a.c.
Neutral
A blue wire that provides a return path for a.c. but carries no
voltage.
Ohm
The unit of resistance
Power
The rate of work done
Quartz
Modern timing devices often use this crystal.
Resistance
The voltage to current ratio
Switch
A device for making or breaking the circuit
Thermistor
A temperature dependent resistor
Uranium
The fuel for a nuclear power plant
Voltage
Energy or work done per unit charge
Watt
The unit of power
X-ray
An electromagnetic wave
Yellow
One of the colours in an earth wire
Zener diode
A diode with a low reverse breakdown voltage.
This device is commonly used as a voltage stabilizer.
Homework: Construct a Fun Test entitled “The ABC’s of Electromagnetism”
Alternators
Brush
Commutators
Dynamo
Electromagnet
Faraday
Generator
Hertz
Induced Current
Junction
Kinetic
Lenz law
Motor
Nonmagnetic
Oersted, H.C.
Permanent magnet
Quarter cycle
Rheostat
Solenoid
Transformer
Unlike current
Volume control
Work
Xenon
Yolk
Zone refining (Hint: This method is related to eddy current.)