Magnetic flux A2 question

The primary and secondary coils of a transformer are wound around an iron core. Each coil has a different cross sectional area and number of turns. Which one of the following quantities will be the same for both coils?

A) Magnetic flux

B) Magnetic flux density

C) Magnetic flux linkage

Okay I guessed B but it was wrong and the Answer is A but I am not too sure why?

Any want to help? thanks everyone

The diagram represents two coils. Coil X has 1000 turns and a cross-sectional area of
10 cm2
. It is carrying a current which produces a field of magnetic flux density 0.002 T.
Coil Y has 50 turns and a cross-sectional area of 4 cm
find the magnetic flux linkage in coil Y (june 2011 Q.4 unit 4)
please help.

Flux density depends on area, and flux linkage depends on number of turns.
Both area and number of turns are different, according to the question.

sorry for hijiacking the thread!

A) Magnetic flux

B) Magnetic flux density

C) Magnetic flux linkage

These three terms are very confusing, would you minding telling me if i am correct? thank you!

Magnetic flux= BA (number of magnetic field line passing through a certain area)
Magnetic flux density =B unit is telsa
Magnetic flux linkage =NBA unit is weber

Yes.
Flux ϕ is measured in weber.
Flux density B is flux per unit area Wb/m² and has a named unit tesla.
B=ϕ/A
ϕ = BA
Flux linkage is used to describe the flux passing through the end area of a coil and is flux times number of turns of wire.
Flux linkage is Nϕ = BAN

Isn't Flux affected by area and area is changing?
why answer is A?