Building Trust - Trust is key to coaching. The supervisor and employee relationship must have some level of trust for coaching to work. A mutual interest in the success of the other is critical. Trust can begin to develop through open, honest feedback and respect.
A resistor at constant temperature (ohmic conductor). Current is directly proportional to potential difference. Doubling the potential difference doubles the current in the circuit. The resistance remains the same. Plotting a graph of potential difference against current gives a straight line passing through the origin (0,0).
The Thermistor is a Positive Temperature Coefficient, transistor bead inserted into the motor windings. This is different such that at normal temperatures the resistance is about 200 to 300 Ohms. At the critical temperature the resistance rises to over 2,000 Ohms.