𝐅𝐢𝐟𝐭𝐲 𝐅𝐨𝐮𝐫 : 𝐂𝐨𝐧𝐝𝐮𝐜𝐭𝐨𝐫𝐬 𝐚𝐧𝐝 𝐈𝐧𝐬𝐮𝐥𝐚𝐭𝐨𝐫𝐬 𝟐𝟕 𝟎𝟑 𝟐𝟔 Part 3 of 3 Metal / Coin ( Conductor , allows current to flow , Beep sound heard )