WorksheetsCalculate Electrical Energy and Power
Total questions: 7
Worksheet time: 11mins
The power of an appliance is...
the amount of energy transferred per second
the amount of voltage going through it
the amount of charge that passes through per second
None
Electrical power can be calculated using
Resistance x Voltage
Voltage x Current
Voltage ÷ Current
Voltage + Current
Watts is the same as...
Voltage per second
Current per second
Joules per second
all of these
The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?
170 A
170 W
170 ohm
1.7 W
Calculate the electric power of an electrical appliance in which 10 A of current is flowing through a resistor of 2 ohms.
80 W
200 W
2.5 A
22.5 k W
A pair of 15-watt computer speakers are connected to a 12-volt power supply. what is the electric current running through the speakers?
1.25 A
0.8 A
12.5 A
180 A
If an oven has a power of 2000 W and the voltage is 230 V what current rating of fuse is required?
3 .5 A
5 .7 A
8.7 A
20.4 A
