In most round electric smokers, there's a designated spot for wood chips, usually a metal tray or box located close to the heating element.
Here's how to do it properly:
Where to Place the Wood Chips
• Look for a removable tray or small metal box near the bottom of the smoker, typically sitting right above or next to the heating coil. https://www.quora.com/Where-do-I-put-wood-chips-when-using-an-electric-element-in-a-round-smoker-grill