Answer:C 0.12 V
Explanation:
Given
Concentration of 
Concentration of 
Standard Potential for Ni and Fe are
and 



Answer:
d. low earth orbit (LEO)
Explanation:
This type of satellites form a constellation deployed as a series of “necklaces” in such a way that at any time, at least one satellite is visible by a receiver antenna, compensating the movement due to the earth rotation.
Opposite to that, a geostationary satellite is at an altitude that makes it like a fixed point over the Earth´s equator, rotating synchronously with the Earth, so it is always visible in a given area.
Answer:
(A) elemental, alloy, or compound thin films are deposited on to a bulk substrate
Explanation:
In film deposition there is process of depositing of material in form of thin films whose size varies between the nano meters to micrometers onto a surface. The material can be a single element a alloy or a compound.
This technology is very useful in semiconductor industries, in solar panels in CD drives etc
so from above discussion it is clear that option (a) will be the correct answer
Answer:0.2A
Explanation:
First, write KCL
i1-i2-i3=0
Then, replace currents with viltages and resistors.
V2-10v/100-v2/200-v2/400=0
V2-40=0
V2=40v
I hope it was helpful
Explanation:
Anodizing :
Anodizing is the surface protection process from the environment.As we know that due to external environment surfaces get corrodes .By using anodizing process the outer surface of material coated by using different type of coating material.
As the name stand that in the anodizing process there will be anode and oxygen.in this process oxidation of material take place .
Oxides of aluminium and magnesium are stable that is why they anodized by this process.