Can I watch Netflix on tv via a cable from my iPhone. I do not have a WiFi connection
Can I Watch Netflix from my iPhone / iPad on tv by cable connection. Wi-Fi not available so cannot via Chromecast etc.
Yes.
You can use Lightning Digital Av adapter or USB-C digital AV mulrtiport adapter depending on the port on your iPad and an HDMI cable.
See here: Lightning Digital AV Adapter - Lightning to HDMI - Apple
and here: USB-C Digital AV Multiport Adapter - Apple