Where is a clamp-on ammeter attached to measure the output current from a network power supply?

A clamp-on ammeter functions by clamping around a conductor to measure the current flowing through it without needing to make direct contact with the electrical circuit. In the context of a network power supply, the appropriate use of a clamp-on ammeter is to measure the output current by clamping it around the conductor that carries the current output to the load.

When clamped around the specific conductor, the ammeter can detect the magnetic field generated by the current flowing through that wire and give a reading of the current. This allows technicians to monitor how much current the power supply is delivering to the connected device, ensuring that it operates within safe and effective limits.

The other options would not provide an accurate measurement of the output current. For example, attaching it directly to the power supply unit wouldn’t provide a reading specific to the output current. Similarly, clamping around a ground wire or the input wire of the power supply would not yield the same information about the output current to the load. Therefore, using the clamp meter around the relevant conductor allows for effective and safe monitoring of the output current from the network power supply.