Electrical conductivity of a pure semiconductor is called _________ conductivity.​

Answers 2

Answer:

semi conductivity

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Electrical conductivity of a pure semiconductor is called an I- type semiconductor.

Explanation:

  • An intrinsic (pure) semiconductor has no dopant species
  • Instead of amount of impurities the properties of materials will determine the number of charge carriers.
  • In intrinsic semiconductors the number of excited electrons and the number of holes are equal : n = p .
  • In this case , n = p the semiconductor remains intrinsic, though doped.
  • The electrical conductivity of chemically pure semiconductors can be affected by crystallographic defects.
  • The conductivity of a semiconductor can be modeled in terms of band theory of solids.

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8. Freya is on the left of the person sitting in middle but is on the right of Bella Sara is on the right of Jamie and Austin is on the right of Sara. Austin is the second person from the person sitting in the middle. Who is sitting in the middle ? (1) Freya (2) Jamie (3) Bella (4) Sara​

Answer:

Jamie

Explanation:

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Write the natural numbers from 205 to 219. What fraction of them are odd numbers?

Answer:

The natural numbers from 205 to 219 are 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219. 8/15 portion of them will be odd numbers.

Step-by-step explanation:

The the positive integers except zero are natural numbers. Natural numbers are used counting.

Hence, the natural numbers from 205 to 219 are 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, since every number here is a positive integer and none of them is zero. However, as the question says "from 205 to 219", we are including 205 and 219 here.

There are total 15 natural numbers from 205 to 219. Among them,

Now among these, 205, 207, 209, 211, 213, 215, 217,219 are not divisible by 2, as each of them will remain 1 as remainder if divided by 2.

Hence, 7 are odd natural numbers.

Hence the fraction will be = 8/15 .

∴Half of them will be odd numbers.

A) Rohan wants to give lift to an old lady and drop her home. Find how much distance he has to cover. b) What value do you learn from Rohan? Hint: add all the fractions
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answer img
if the equation for the displacement of a particle moving along a circular path is given by theta = to 2 t³ + 0.5 where theta is in radius and t is in seconds then the angular acceleration of the particle at t = 2s is(a) 8 rads-2(b) 12rads-2(c) 24rads-2(d) 36rads-2​

Answer:

Correct option is C)

option c 24 rad s

ω=

dt

dq

=

dt

d

(2t

3

+0.5)=6t

2

t=2s,ω=6×2

2

=24rad/s

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