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Electrical Installation Mathematics - Coggle Diagram
Electrical Installation Mathematics
2 - Mathematic Principles
Volts = V
Ohms = R
Amperes = I
Volts = V
Watts = P
Amperes = I
P = I² x R
P / R = I²
3 - Resistors in Series
Add them together
4 - Resistors in Parallel
1/RT = (1/R1 + 1/R2 + 1/R3)
Find the common denominator for all the resistors, add them together and inverse the fraction
Resistors in parallel use Reciprocals
Turning a number into a fraction 5 = 1/5
Sine waves
RMS 0.707 x peak value
0.646 x Avg
14 - Basic Mechanics
Gravity = 9.81m/s2
Mass(kg) x 9.81 = Force
1 litre of Water Weighs 1kg
Energy Is the capacity for doing work. It may exist in in potential, kinetic, thermal, electrical, chemical, nuclear forms. The unit of energy is the newton metre or Joule
Force x Distance = Energy
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