Displacement is the amount of "ground" and object moves from it starting point and distance is how much "ground" an object covers in total. Displacement by definition is moving of something from its place or position and distance by definition is the amount of space between two things (in this case the starting position and ending position).ΥΤ-ΤΟΝΙХWΙLSΟΝ
Answer:
![18.8\times 10^{-3} T](https://tex.z-dn.net/?f=18.8%5Ctimes%2010%5E%7B-3%7D%20T)
Explanation:
We are given that
Number of turns,N=500
Radius,r=0.04 m
Length of solenoid,L=40 cm=![\frac{40}{100}=0.4 m](https://tex.z-dn.net/?f=%5Cfrac%7B40%7D%7B100%7D%3D0.4%20m)
1 m=100 cm
Current,I=12 A
We have to find the magnitude of magnetic field near the center of the solenoid.
Number of turns per unit length,n=![\frac{500}{0.4}=1250](https://tex.z-dn.net/?f=%5Cfrac%7B500%7D%7B0.4%7D%3D1250)
Magnetic field near the center of the solenoid,B=![\mu_0 nI](https://tex.z-dn.net/?f=%5Cmu_0%20nI)
Where ![\mu_=0=4\pi\times 10^{-7}Tm/A](https://tex.z-dn.net/?f=%5Cmu_%3D0%3D4%5Cpi%5Ctimes%2010%5E%7B-7%7DTm%2FA)
![B=4\pi\times 10^{-7}\times 1250\times 12=18.8\times 10^{-3} T](https://tex.z-dn.net/?f=B%3D4%5Cpi%5Ctimes%2010%5E%7B-7%7D%5Ctimes%201250%5Ctimes%2012%3D18.8%5Ctimes%2010%5E%7B-3%7D%20T)
![B=18.8\times 10^{-3} T](https://tex.z-dn.net/?f=B%3D18.8%5Ctimes%2010%5E%7B-3%7D%20T)
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<span>The fact that muscles will improve in strength and conditioning in response to resistance training is called MUSCLE HYPERTROPHY.
This occurs because during resistance training the muscles develop very small tears, called micro-tears, that eventually heal and become scar tissues. As the scar tissues continue to increase, muscle fibers are said to bulk up creating that big and muscular physique that you see in people who are into resistance training.</span>