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storchak [24]
3 years ago
10

A semiconductor wafer with n-type impurities has been stripped from all its free electrons. The wafer is in the form of a flat d

isk and has positive charges uniformly distributed on its top and bottom surface. The charge density is 10 C/cm^2. Determine the magnitude of the electric flux density D above the wafer in C/m^2.a. 0.5 x10+5 c/m2 b. 0.5x10-5 C/m2 c. 0.5x10 C/m2 d. 10+5 C/m2
Engineering
1 answer:
skelet666 [1.2K]3 years ago
4 0

Answer:

a. 0.5x10⁵

Explanation:

The charge density = 10C/cm²

We are asked to find the magnitude of the electric flux density

The electric field of infinite sheet

E = σ/2Eo

We have electric density as follows:

D = EEo = EoE

Since charge density σ = 10C/cm²

σ = 10x10²C/m²

D = σ/2

10x10⁴/2

= 5x10⁴C/m²

= 0.5x10⁵C/m²

Therefore the magnitude is equal to 0.5x10⁵C/m². Which gives us option a as the answer

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Answer:

Time period  = 41654.08 s

Explanation:

Given data:

Internal volume is 210 m^3

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total volume of air  infiltration= \frac{582.8\times 10{-5}}{1.156} = 5.04\times 10^{-3} m^3/s

Time period = \frac{210}{5.04\times 10^{-3}} = 41654.08 s

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4 years ago
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Using an appropriate failure theory, find the factor of safety in each case. State the name of the theory that you are using the theory is max stress theory.

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2 years ago
Plssssssssssssss Alexi is writing a program which prompts users to enter their age. Which function should she use?
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Answer:

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By elimination, int() is correct.

Hope this helps!

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Need help solving math problem using integration
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