It is actually caused by the environment, so its false. :)
If we are being specific, the inner core has the highest density, but if not then the core in general
Explanation:
The mass written on the periodic table is an average atomic mass taken from all known isotopes of an element. This average is a weighted average, meaning the isotope's relative abundance changes its impact on the final average. The reason this is done is because there is no set mass for an element.
Answer:
1.04μT
Explanation:
Due to both wires have opposite currents, the magnitude of the total magnetic field is given by
![B_T=\frac{\mu_o I}{2 \pi r_1}-\frac{\mu_o I}{2 \pi r_2}](https://tex.z-dn.net/?f=B_T%3D%5Cfrac%7B%5Cmu_o%20I%7D%7B2%20%5Cpi%20r_1%7D-%5Cfrac%7B%5Cmu_o%20I%7D%7B2%20%5Cpi%20r_2%7D)
I: electric current = 10A
mu_o: magnetic permeability of vacuum = 4pi*10^{-7} N/A^2
r1: distance from wire 1 to the point in which B is measured.
r2: distance from wire 2.
The distance between wires is 40cm = 0.4m. Hence, r1=0.2m r2=0.6m
By replacing in the formula you obtain:
![B_T=\frac{(4\pi *10^{-7}N/A^2)(10A)}{2\pi}(\frac{1}{0.4m}-\frac{1}{0.6m})=1.04*10^{-6}T =1.04\mu T](https://tex.z-dn.net/?f=B_T%3D%5Cfrac%7B%284%5Cpi%20%2A10%5E%7B-7%7DN%2FA%5E2%29%2810A%29%7D%7B2%5Cpi%7D%28%5Cfrac%7B1%7D%7B0.4m%7D-%5Cfrac%7B1%7D%7B0.6m%7D%29%3D1.04%2A10%5E%7B-6%7DT%20%3D1.04%5Cmu%20T)
hence, the magnitude of the magnetic field is 1.04μT