1) What happens when john turns to elizabeth for advice in act 4.

Also...

I cant find the physical appearance for Francis Nurse. Does anyone know how he is portrayed and looks like in the play

http://www.sparknotes.com/lit/crucible/

and
http://www.enotes.com/crucible/

Be sure to check out the characters sections.

Also ... go back and re-read the text. If you find no description, what do you think that tells you?

To answer your first question about what happens when John turns to Elizabeth for advice in Act 4, you would need to refer to the text of the play "The Crucible" by Arthur Miller. Act 4 is the final act of the play and contains crucial moments for the characters. By reading Act 4, you will find out the specific details of the interaction between John and Elizabeth, as well as the outcome of their conversation and its impact on the story.

Regarding your second question about the physical appearance of Francis Nurse in the play, it is important to note that a character's physical appearance may not always be explicitly described in the play's dialogue or stage directions. Instead, the focus is often on the character's actions, emotions, and relationships with other characters.

If there is no explicit description of Francis Nurse's physical appearance in the play "The Crucible," it would be up to the interpretation of the director, actors, and production team involved in a particular production to determine how he is portrayed. Different productions may present characters in various ways to convey their personality, age, and other attributes. Therefore, you may want to explore different adaptations or visual representations of the play to get an idea of how Francis Nurse has been portrayed by different artists or theater companies.