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).
Ohms are a measure of electrical resistance. The higher the number, the more resistance. Zero ohms is essentially a dead short. You can think of electricity as water in a hose. Ohms would be equivalent to the size of the hose, the higher the number, the smaller the hose. So an amplifier will push more electricity to a 4 ohm sub than an 8 ohm sub.