Case : Read the passage and answer the question(s).

Consider a coil C₁ connected to galvanometer as shown. Another current carrying coil C₂ is placed next to the first coil. 

In context to this, answer the following question.

Which of the following best describes magnetic flux?

A :  area vector

B : magnetic field

BA Cos θ

Magnetic flux through an area A due to magnetic field B is Φ = B.A = BA Cos θ.