Electricity Flashcards
1
Q
Current
State symbol and units
A
I
(A) amps
2
Q
Charge
State symbol and units
A
Q
(C) coulombs
3
Q
Alternating current
A
Direction of electron flow which continuously changes back and fourth
4
Q
Energy cannot
A
Be created or destroyed
5
Q
Resistance
State symbol and units
A
R
(Ohms)
6
Q
Lower resistance =
Higher resistance =
A
Greater current
Smaller current
7
Q
Voltage is known as
A
Potential difference/divider
8
Q
Current definition
A
Charge transferred per unit time
9
Q
Power
State symbol and units
A
P
(W) watts
10
Q
Voltage
A
Work done per unit of charge
11
Q
Direct current
A
An electric current flowing in one direction only
12
Q
Two types of electric charge
A
Positive
Negative
13
Q
Voltage
State symbol and units
A
V
(V) volts
14
Q
Appliances rated over 720w should use
A
13 A fuse
15
Q
Appliances rated up to 720w should use
A
3A fuse
