P2 Formulae Flashcards
1
Q
Formula for charge
A
Charge = current x time
2
Q
Formula for velocity with wavelength.
A
Velocity = frequency x wavelength
3
Q
Formula for voltage.
A
Voltage = current x resistance
4
Q
Two formulas for energy transferred
A
Energy transferred = voltage x current
energy transferred=voltage x current x time
5
Q
Two formulas for energy transferred
A
Energy transferred = voltage x current
energy transferred=voltage x current x time
6
Q
Formula for electric power
A
Electrical power = voltage x current
7
Q
Formula for electric power
A
Electrical power = voltage x current
8
Q
Formula for the number of units used
A
Units used = power rating x time (hours)
9
Q
Formula for the total cost of units.
A
Total cost = number of units used x cost per unit
