21. Heat is not a state variable . 22. Because there are four state variables , visualizing the path in phase space can be difficult. 23. The axes are of state variables . 24. Ecosystems can shift from one state to another via a significant perturbation directly to state variables . 25. The Autotransformer motor starting apparatus is relatively simple compared to solid-state variable frequency drives. 26. The first balancing loop is directly connected to the reinforcing loop via the current state variable . 27. Sometimes, to that list are appended other extensive state variables , for example electric dipole moment. 28. The thermodynamic state of a thermodynamic system is its internal state as specified by its state variables . 29. Using the temporary equilibrium method, it can be reduced to a system involving only state variable . 30. State variable oscillator ? Preceding talk ) 03 : 20, 18 September 2007 ( UTC)
