A current of 6.67 A in a solenoid of length 13.6 cm creates a 0.373 T magnetic field at the center of the solenoid. How many turns does this solenoid contain?

The value is  

Explanation:

From the question we are told that

   The current is  

  The length is  

  The magnetic field is  

Gnerally the number of turn per unit length is mathematically represented as

Here is the permeability of free space with value  

So

=>    

=>    

Generally the number of turn is mathematically represented as

=>  

=>  

it is very well related to a lot of things but with my limited knowledge i can confidently say that the answer is space.

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

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since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.