There are four coils of wire being used as electromagnets. They all have the same size and are made up of the same material but have a different number of loops. Which coil will produce a magnetic field with the maximum strength when the same amount of current passes through all coils?

A. a coil having 10 loops
B. a coil having 25 loops
C. a coil having 30 loops
D. a coil having 45 loops
would it be D?

its B. 25 loops. I am trying get get how its 25. I got this wrong on my exam but my professor gave us the answer. My answer was D as well

To determine which coil will produce the maximum magnetic field strength, we need to consider the factors that affect the magnetic field strength generated by an electromagnet.

The magnetic field strength produced by an electromagnet is directly proportional to the number of loops (turns) of wire in the coil. Therefore, increasing the number of loops increases the magnetic field strength.

Since all the coils have the same size and are made up of the same material, the only difference between them is the number of loops.

From the given options, the coil with 45 loops (Option D) will produce the maximum magnetic field strength because it has the highest number of loops. So, yes, Option D would produce the maximum magnetic field strength when the same amount of current passes through all coils.

yes

thought so, thanks