Number 2 is the correct answer
Answer:
Determine the intensity of the magnetic field in the center of a thin coil with 20 turns. The current is 2A, the mean radius of the coil is 4cm.
Explanation:
to help english help you
Hello <span>Quinshayewilli7701 </span>
Question: What does a program do when it needs to read a file?<span>
Answer: It goes the address area, which is the front of the hard drive with the links to the areas on the hard drive where the file is located.
Hope This helps
-Chris</span>