Basic theory Flashcards
1
Q
1 ml in Cubic cm3
A
1 cm3
2
Q
Formula to calculate Electric Power in Watt
3 formulas
A
P = V^2 / R --> Voltage squared divided by the resistance is power P = I x V --> Current times Voltage is Power in Watt P = R x I^2 --> Resistance time Current squared is power
3
Q
Volume of a cylinder rule of thumb
example1 cylinder
h = 1000 mm
d = 10 mm
example 2
h = 1 m
d = 50 mm
A
R^2 x 3 in mm ~ V (ml)
4% naast (komt door de 3 ipv 3.14)
Actual cylinder volume
- Vc = h x Pi x R2 .
example
1000 * 3.14 * 5^2 = 78500 mm3 = 78.5 cm3(ml)
1000 * 3 * 25 = 75000 = 75 ml
1000 * 3.14 * 25^2 = 1.96*10^6 mm3 = 1960 cm3(ml)
4
Q
How do you measure force from the Pressure
A
F = P * A (P = F/A) Force (N) = Pressure N/mm2 times Area mm2
