When is the Zeeman effect interaction zero?

[tan90]

Homework Statement

When is Zeeman effect interaction 0?

Homework Equations

The Attempt at a Solution

I was thinking that when l=0, then Zeeman effect interaction should be 0 because when l =0, we only have ml = 0. So, zeeman effect interaction should be zero.
I haven't understood this whole thing, so, I am not sure.

 

[marcusl]

What external quantity does it depend on?

 

[tan90]

It depends on magnetic field (B).

 

[marcusl]

Right! So for what value of field is there no effect?

 

[tan90]

for B = 0 since, del E = $$\mu$$B * ml * B

actually, I think I didn't write the whole question. So, I am sorry for that, the question was for what values of the orbital angular momentum is the Zeeman effect zero. So, my first answer is correct. thanks for the help =)