When a manual service valve is backseat cracked:
A) Both the service port and the line are open to the system.
B) Both the service port and the line are closed to the system.
C) The service port is open and the system is closed to the line.
D) The service port is closed and the system is open to the line.
A
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R0 = 0.11?; and P is the power dissipated in the resistive element of the fuse. Determine the rated current at which the fuse will melt (that is, “blow”) and thus act as an open-circuit.
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