Answer:

Explanation:
As we know that the magnetic field near the center of solenoid is given as

now we know that initially the length of the solenoid is L = 18 cm and N number of turns are wounded on it
So the magnetic field at the center of the solenoid is 2 mT
now we pulled the coils apart and the length of solenoid is increased as L = 21 cm
so we have

now plug in all values in it


I’m not sure I think if you google it it should pop up or go on quizlet sorry
Its this (couldn’t write it down on here properly so i had to ss it)
Basically, it’s just the difference between the x values at the top and the difference between the Y values at the bottom.
A) An electrical resistor
Hope that helps, Good luck! (:
Answer:
The last part on the right side of the diagram
Explanation:
Im on plato and just got it right :)