Answer:
The speed of the magnetic field rising is
![=0.0147 \ T/s](https://tex.z-dn.net/?f=%3D0.0147%20%5C%20T%2Fs)
Explanation:
Mathematically Induced Emf is as follows
![e = - \frac{\Delta B}{\Delta t} *N * Area](https://tex.z-dn.net/?f=e%20%3D%20-%20%5Cfrac%7B%5CDelta%20B%7D%7B%5CDelta%20t%7D%20%2AN%20%2A%20Area)
The objective of this solution is to obtain speed in Tesla per second which the same as
since the unit of magnetic field B is Tesla and Time is seconds
So making
the subject
![\frac{\Delta B}{\Delta t } =\frac{Emf}{N*Area}](https://tex.z-dn.net/?f=%5Cfrac%7B%5CDelta%20B%7D%7B%5CDelta%20t%20%7D%20%20%3D%5Cfrac%7BEmf%7D%7BN%2AArea%7D)
![The \ Area = \pi r^2](https://tex.z-dn.net/?f=The%20%5C%20Area%20%3D%20%5Cpi%20r%5E2)
![= 3.142 * (0.08)^2](https://tex.z-dn.net/?f=%3D%203.142%20%2A%20%280.08%29%5E2)
![=0.020m](https://tex.z-dn.net/?f=%3D0.020m)
N is given as 170.4 turns
![Therefore \ \frac{\Delta B}{\Delta t} = \frac{0.050}{170.4*0.02}](https://tex.z-dn.net/?f=Therefore%20%20%5C%20%20%5Cfrac%7B%5CDelta%20B%7D%7B%5CDelta%20t%7D%20%3D%20%5Cfrac%7B0.050%7D%7B170.4%2A0.02%7D)
![=0.0147 \ T/s](https://tex.z-dn.net/?f=%3D0.0147%20%5C%20T%2Fs)
Answer:
presumptuous
Explanation:
it's what you call someone who assumes something
A Solid? Because its a substance tightly packed together.