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Engineering Explanations
Clear, concise explanations of complex engineering concepts.
- Ohm's Law fundamentals
- Structural load theory
- Fluid dynamics basics
Formula Reference
Essential engineering formulas at your fingertips.
Ohm's Law
ElectricalV = I × R
Fundamental relationship between voltage, current, and resistance.
- V = Voltage (Volts)
- I = Current (Amperes)
- R = Resistance (Ohms)
Torque
Mechanicalτ = F × r
Rotational force applied at a distance from a pivot point.
- τ = Torque (N·m)
- F = Force (Newtons)
- r = Radius/Lever arm (m)
Mechanical Power
MechanicalP = F × v
Rate at which work is done by a force.
- P = Power (Watts)
- F = Force (Newtons)
- v = Velocity (m/s)
Normal Stress
Civilσ = F / A
Internal force per unit area in a material.
- σ = Stress (Pa)
- F = Force (Newtons)
- A = Area (m²)
Pressure
GeneralP = F / A
Force applied per unit area.
- P = Pressure (Pa)
- F = Force (Newtons)
- A = Area (m²)
Kinetic Energy
MechanicalKE = ½ × m × v²
Energy possessed by an object due to its motion.
- KE = Kinetic Energy (J)
- m = Mass (kg)
- v = Velocity (m/s)
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