Solution:
When you join a Zoom meeting, press the "join audio" button.
When prompted, select, "Call using Internet Audio".
Open the Settings App on your iPad.
Tap the "Privacy" menu.
Tap "Microphone".
4. Make sure Zoom is turned on.
You should also check if your mic is muted in your Zoom call. If your mic button says, "unmute," go ahead and press it to unmute your mic.
Open the Settings App on your iPad.
Tap the "Privacy" menu.
Tap "Camera".
4. Make sure Zoom is turned on.