What are the correct steps when measuring current in a circuit?

When measuring current in a circuit, it is vital to ensure safety and accuracy. The correct process involves first powering off the circuit to prevent any risk of electric shock or damage to the measuring device. After ensuring that the circuit is de-energized, the probe can be connected in series with the component whose current is to be measured.

Once the probe is securely in place, the next step is to power the circuit back on. This allows current to flow through the circuit, including through the probe. At this stage, the reading can be taken, and once the measurement is complete, the circuit should be powered off again before disconnecting the probe. This systematic approach prevents accidental shorts or electrical hazards and ensures that the measurement is taken correctly while minimizing any potential risks associated with live circuits.

Following this process, as indicated in the correct choice, ensures both safety and accuracy in current measurements.