Question

Prior to connecting the counting unit to a power source (current)

Answer 1

To connect the counting unit to a power source, follow these steps: connect the positive terminal of the voltage source to the input of the ammeter, connect the output of the ammeter to one connection of the socket, and connect the other connection of the socket to the negative terminal of the voltage source. Make sure the voltage source is set to supply DC voltage and the ammeter is set to measure DC amperes.

Step-by-step explanation:

To connect the counting unit to a power source, you need to follow the steps below:

1. Connect the positive terminal of the voltage source to the input of the ammeter.
2. Connect the output of the ammeter to one connection of the socket.
3. Connect the other connection of the socket to the negative terminal of the voltage source.

Make sure that the voltage source is set to supply DC voltage and the ammeter is set to measure DC amperes. This setup will create the desired circuit.