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andriy [413]
3 years ago
5

The transistor is biased with a constant current source ???? = 1mA and β = 100. a) Neglecting the early effect, find the dc volt

ages at the base, emitter, and collector. b) [4] Find gm, rπ c) [5] If terminal Z is connected to ground, X to a signal source vsig with a source resistance Rsig = 2kΩ, and Y to an 8 kΩ load resistance, use the hybrid-π model to draw the small-signal circuit. calculate the overall voltage gain vy vsig .

Engineering
1 answer:
Dmitrij [34]3 years ago
4 0

Answer:

See explaination

Explanation:

The detailed and step by step solution of the given problem can be found at the attachment.

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Answer: 24 pA

Explanation:

As pure silicon is a semiconductor, the resistivity value is strongly dependent of temperature, as the main responsible for conductivity, the number of charge carriers (both electrons and holes) does.

Based on these considerations, we found that at room temperature, pure silicon resistivity can be approximated as 2.1. 10⁵  Ω  cm.

The resistance R of a given resistor, is expressed by the following formula:

R = ρ L / A

Replacing by the values for resistivity, L and A, we have

R = 2.1. 10⁵ Ω  cm. (10⁴ μm/cm). 50 μm/ 0.5 μm2

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3 years ago
Let's model this housing price data! Before we can do this, however, we need to split the data into training and test sets. Reme
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import pandas as pd

<em>#import</em><em> </em><em>the</em><em> </em><em>pandas</em><em> </em><em>dataframe</em><em> </em><em>and</em><em> </em><em>alias</em><em> </em><em>it</em><em> </em><em>as</em><em> </em><em>pd</em>

from sklearn.model_selection import train_test_split

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housing_df = pd.read_csv('housing price.csv')

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features_df = df.iloc[:,1:]

<em>#seperate</em><em> </em><em>the</em><em> </em><em>features</em><em> </em><em>from</em><em> </em><em>the</em><em> </em><em>label</em><em> </em><em>;</em>

target_df = df.iloc[:,0]

<em>#put</em><em> </em><em>the</em><em> </em><em>label</em><em> </em><em>into</em><em> </em><em>a</em><em> </em><em>seperate</em><em> </em><em>dataframe</em><em> </em><em>as</em><em> </em><em>well</em><em>.</em><em> </em>

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<em>#</em><em>Test</em><em> </em><em>size</em><em> </em><em>is</em><em> </em><em>test</em><em> </em><em>percent</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>entire</em><em> </em><em>dataset</em><em> </em>

Learn more :brainly.com/question/4257657?referrer=searchResults

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Explanation:

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