MEASURING ELECTRICITY
Fill in the blanks in the tables below.
TABLE 1
VOLTAGE
=
CURRENT
X
RESISTANCE
1.5 V
=
A
X
3 Ω
V
=
3 A
X
4 Ω
120 V
=
4 A
X
Ω
240 V
=
A
X
12 Ω
TABLE 2
POWER
=
VOLTAGE
X
CURRENT
27 W
=
9 V
X
A
W
=
120 V
X
1.5 A
45 W
=
V
X
3 A
W
=
120 V
X
2 A
TABLE 3
APPLIANCE
POWER
=
VOLTAGE
X
CURRENT
TV
180 W
=
120 V
X
A
COMPUTER
40 W
=
120 V
X
A
PRINTER
120 W
=
120 V
X
A
HAIR DRYER
1000 W
=
120 V
X
A
TABLE 4
POWER
X
TIME
=
ELECTRICAL ENERGY (kWh)
X
PRICE
=
COST
5 kW
X
100 h
=
kWh
X
$0.125
=
$
25 kW
X
4 h
=
kWh
X
$0.125
=
$
1000 W
X
1 h
=
kWh
X
$0.125
=
$