Before using a power supply in an experiment, you should first:

  1. remove its fuse
  2. switch it to maximum voltage
  3. touch the terminals to test it
  4. check that its leads and insulation are undamaged
Answer

D) check that its leads and insulation are undamaged

Damaged insulation can cause shocks. SLO P-11-N-01 · Application

Physics MCQ · More Experimental Skills and Data Analysis MCQs · Practise