Answer:
<h2>Magnetic field required for the given induced EMF is 1.41 T</h2>
Explanation:
Potential difference across the blood vessel is given as
![E = vBd](https://tex.z-dn.net/?f=E%20%3D%20vBd)
here we know that the speed is given as
![v = 14.8 cm/s](https://tex.z-dn.net/?f=v%20%3D%2014.8%20cm%2Fs)
![d = 4.80 mm](https://tex.z-dn.net/?f=d%20%3D%204.80%20mm)
![E = 1 mV](https://tex.z-dn.net/?f=E%20%3D%201%20mV)
now we have
![1 \times 10^{-3} = (14.8 \times 10^{-2})B(4.80 \times 10^{-3})](https://tex.z-dn.net/?f=1%20%5Ctimes%2010%5E%7B-3%7D%20%3D%20%2814.8%20%5Ctimes%2010%5E%7B-2%7D%29B%284.80%20%5Ctimes%2010%5E%7B-3%7D%29)
![B = 1.41 T](https://tex.z-dn.net/?f=B%20%3D%201.41%20T)
Now volume flow rate of the blood is given as
![Q = Av](https://tex.z-dn.net/?f=Q%20%3D%20Av)
![Q = \frac{\pi d^2v}{4}](https://tex.z-dn.net/?f=Q%20%3D%20%5Cfrac%7B%5Cpi%20d%5E2v%7D%7B4%7D)
from above equation we have
![v = \frac{E}{Bd}](https://tex.z-dn.net/?f=v%20%3D%20%5Cfrac%7BE%7D%7BBd%7D)
Now we have
![Q = \frac{\pi d^2\frac{E}{Bd}}{4}](https://tex.z-dn.net/?f=Q%20%3D%20%5Cfrac%7B%5Cpi%20d%5E2%5Cfrac%7BE%7D%7BBd%7D%7D%7B4%7D)
![Q = \frac{\pi E d}{4B}](https://tex.z-dn.net/?f=Q%20%3D%20%5Cfrac%7B%5Cpi%20E%20d%7D%7B4B%7D)
0.022 has 2 digits because you would count from the left starting with the first nonzero number
Answer:
Resistance to electrical currents
Explanation:
Conductors have low resistance to electrical currents, and are used to "conduct" the flow of electricity.
Insulators have very high resistance and are used to protect us from the flow of electricity.
Answer:
mantle convection is the very slow creeping motion of earths solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.