Answer:
to help people breach in fresh air
Explanation:
Answer:
Magnitude of the induced emf is 11.62 V
Explanation:
Given:
No. of turns of the circular coil, N=185
Radius, R=4.50 cm=0.045 m
No. of turns of solenoid per meter(m), n=350
a=12.5 A
b=2.10 ![s^{-1}](https://tex.z-dn.net/?f=s%5E%7B-1%7D)
Now,
To determine the emf induced in the coil at t = 1.50 s:
The given equation is:
![I=a(1-e^{-bt})](https://tex.z-dn.net/?f=I%3Da%281-e%5E%7B-bt%7D%29)
Now,
![B=\mu_{o}nI=\mu_{o}na(1-e^{-bt})](https://tex.z-dn.net/?f=B%3D%5Cmu_%7Bo%7DnI%3D%5Cmu_%7Bo%7Dna%281-e%5E%7B-bt%7D%29)
![\frac{dB}{dt}=\mu_{o}nabe^{-bt}](https://tex.z-dn.net/?f=%5Cfrac%7BdB%7D%7Bdt%7D%3D%5Cmu_%7Bo%7Dnabe%5E%7B-bt%7D)
Now, substituting the respective values:
![\frac{dB}{dt}=-4\pi\times 10^{-7}\times 350\times 12.5\times 2.10e^{-2.10\times 1.50}](https://tex.z-dn.net/?f=%5Cfrac%7BdB%7D%7Bdt%7D%3D-4%5Cpi%5Ctimes%2010%5E%7B-7%7D%5Ctimes%20350%5Ctimes%2012.5%5Ctimes%202.10e%5E%7B-2.10%5Ctimes%201.50%7D)
![\frac{dB}{dt}=0.988\ T/s](https://tex.z-dn.net/?f=%5Cfrac%7BdB%7D%7Bdt%7D%3D0.988%5C%20T%2Fs)
Now,
![emf=NA\frac{dB}{dt}](https://tex.z-dn.net/?f=emf%3DNA%5Cfrac%7BdB%7D%7Bdt%7D)
where,
A=Area=![\pi R^{2}](https://tex.z-dn.net/?f=%5Cpi%20R%5E%7B2%7D)
Thus,
![emf=185\times \pi\times (4.50\times 10^{-2})^{2}\times 11.545e^{-3.15}](https://tex.z-dn.net/?f=emf%3D185%5Ctimes%20%5Cpi%5Ctimes%20%284.50%5Ctimes%2010%5E%7B-2%7D%29%5E%7B2%7D%5Ctimes%2011.545e%5E%7B-3.15%7D)
![emf=11.62 V](https://tex.z-dn.net/?f=emf%3D11.62%20V)
It take the earth about 24 hours to rotate 360 degrees. It take 365 days for it to make 1 revolution through space
A. Conduct an exam. Thomas might have a drug dependence.
(Please mark Brainliest! :D)
Electric power, energy generated through the conversion of other forms of energy, such as mechanical, thermal, or chemical energy.
hope this helps:)sorry if it doesnt