𝗣𝗢𝗦𝗧 𝗧𝗪𝗘𝗡𝗧𝗬 𝗢𝗡𝗘 : 𝗡𝗲𝗼𝗻 𝗧𝗲𝘀𝘁𝗲𝗿𝘀 , 𝟯 𝗺𝗼𝗱𝗲𝗹𝘀, 𝗔𝗱𝘃𝗶𝗰𝗲 𝘁𝗼 𝗦𝘁𝘂𝗱𝗲𝗻𝘁𝘀 : 𝗗𝗢 𝗡𝗢𝗧 𝗧𝗥𝗨𝗦𝗧 𝗧𝗘𝗦𝗧𝗘𝗥𝗦, 𝗕𝗘 𝗖𝗔𝗥𝗘𝗙𝗨𝗟

 If there is flow of current, the Tester lights up. Students were given the opportunity to use the Testers