I am currently working with H1 B visa. I received EAD when my husband applied gc through his company and used it for part time job this year. However, My husband got laid off last year therefore It's really necessary for me to maintain my status as H1 B and he's on H4.

Q: Can I use EAD to do part time job ? and use my H1B to do my full time job ?

Q : By using EAD for part time job, will that cancell my H1 B automatically ?

Q; We also have a valid AP, Can we use the AP for travelling ?

Thanks in advance for your help.