Can I connect wired PC keyboard to iPad?

Yes. For a wired USB Keyboard, you will require an appropriate USB Adapter. For your iPad10 with a USB-C connection, you might usefully choose an Apple USB-C Digital AV Multiport Adapter:

https://store.apple.com/xc/product/MW5M3ZM/A

This Adapter incorporates a USB Type-A connection for your USB Keyboard - plus a USB-C pass-through connection to which you can simultaneously connect your iPad's Power Adapter and, if required, an external monitor/TV over HDMI.