WHAT IS 3.14 V of P?

3.14 V of P likely refers to a voltage measurement of 3.14 volts across a component labeled "P." In electrical terms, this indicates the potential difference or electrical pressure driving current through that component. If "P" represents a specific device or point in a circuit, 3.14 V would be the voltage level at that location. Further context would be needed to provide more specific information about what "P" signifies.