𝗣𝗒𝗦𝗧 𝗧π—ͺπ—˜π—‘π—§π—¬ π—’π—‘π—˜ : 𝗑𝗲𝗼𝗻 π—§π—²π˜€π˜π—²π—Ώπ˜€ , 𝟯 π—Ίπ—Όπ—±π—²π—Ήπ˜€, π—”π—±π˜ƒπ—Άπ—°π—² π˜π—Ό π—¦π˜π˜‚π—±π—²π—»π˜π˜€ : 𝗗𝗒 𝗑𝗒𝗧 𝗧π—₯𝗨𝗦𝗧 π—§π—˜π—¦π—§π—˜π—₯𝗦, π—•π—˜ 𝗖𝗔π—₯π—˜π—™π—¨π—Ÿ

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