Vector (2) Flashcards
1
Q
Define Inductive Reactance (XL)
A
circular magnetic fields create a self induced eddy current flow in the coil which opposes the primary current direction - known as inductive reactance
2
Q
Inductive Reactance units and formula
A
XL = 2πFL
XL - inductive reactance (ohms)
F - frequency of current
L - inductance value for coil
3
Q
Define Impedance
A
total opposition to primary current flow in a coil circuit.
- sum of resistance (R) and inductive reactance (XL)
4
Q
Impedance Formula
A
Z² =R² + XL²
Z- impedance
R - resistance
XL - inductive reactance
5
Q
What is the name for the diagram that shows the relationship between inductive reactance and resistance?
A
Vector phase diagram