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Chapter 1 - Electric Current, Ohms Law and Kirchhoffs Laws

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Chapter 2 - Magnetic Effects of Electric Current and Measuring Instruments

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Chapter 3 - Electromagnetic Induction and AC Dynamo and Transformer

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Chapter 4 - Alternating Current AC Circuits

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Chapter 5 - Dual Nature of Wave and Particle

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Chapter 6 - Atomic Spectra and X-Rays

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Chapter 7 - Lasers and Principles

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Chapter 8 - Modern Electronics and Semiconductors

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Quiz

Lesson 1 Quiz: Intrinsic and Doped Semiconductors, the p-n Junction and Transistors

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1.
STEM Semiconductor Electronics Problem 36: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
By heating pure silicon above 1,000°C without impurities
By cooling silicon to absolute zero Kelvin
By doping with pentavalent Phosphorus atoms
2.
STEM Semiconductor Electronics Problem 10: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
By cooling silicon to absolute zero Kelvin
By heating pure silicon above 1,000°C without impurities
By doping with pentavalent Phosphorus atoms
3.
STEM Compton Effect Problem 39: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its speed decreases significantly while wavelength remains constant
Its mass increases while kinetic energy decreases
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its frequency increases and energy increases
4.
STEM Compton Effect Problem 18: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its speed decreases significantly while wavelength remains constant
Its mass increases while kinetic energy decreases
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its frequency increases and energy increases
5.
STEM Compton Effect Problem 36: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its frequency increases and energy increases
Its mass increases while kinetic energy decreases
Its speed decreases significantly while wavelength remains constant
6.
STEM Semiconductor Electronics Problem 6: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By doping with pentavalent Phosphorus atoms
By heating pure silicon above 1,000°C without impurities
By cooling silicon to absolute zero Kelvin
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
7.
STEM Semiconductor Electronics Problem 43: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By heating pure silicon above 1,000°C without impurities
By cooling silicon to absolute zero Kelvin
By doping with pentavalent Phosphorus atoms
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
8.
STEM Compton Effect Problem 42: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its speed decreases significantly while wavelength remains constant
Its frequency increases and energy increases
Its mass increases while kinetic energy decreases
9.
STEM Semiconductor Electronics Problem 29: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By cooling silicon to absolute zero Kelvin
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
By doping with pentavalent Phosphorus atoms
By heating pure silicon above 1,000°C without impurities
10.
STEM Semiconductor Electronics Problem 5: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By cooling silicon to absolute zero Kelvin
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
By doping with pentavalent Phosphorus atoms
By heating pure silicon above 1,000°C without impurities
11.
STEM Semiconductor Electronics Problem 8: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By doping with pentavalent Phosphorus atoms
By cooling silicon to absolute zero Kelvin
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
By heating pure silicon above 1,000°C without impurities
12.
STEM Compton Effect Problem 43: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its speed decreases significantly while wavelength remains constant
Its frequency increases and energy increases
Its mass increases while kinetic energy decreases
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
13.
STEM Compton Effect Problem 21: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its speed decreases significantly while wavelength remains constant
Its mass increases while kinetic energy decreases
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its frequency increases and energy increases
14.
STEM Semiconductor Electronics Problem 13: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By doping with pentavalent Phosphorus atoms
By cooling silicon to absolute zero Kelvin
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
By heating pure silicon above 1,000°C without impurities
15.
STEM Compton Effect Problem 37: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its speed decreases significantly while wavelength remains constant
Its frequency increases and energy increases
Its mass increases while kinetic energy decreases
16.
The universal gas constant R in SI units has the numerical value and dimensions of:
0.0821 J / mol
6.022 x 1023 J / K
1.38 x 10−23 Pa . m3
8.314 J / (mol . K)
17.
STEM Compton Effect Problem 13: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its mass increases while kinetic energy decreases
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its speed decreases significantly while wavelength remains constant
Its frequency increases and energy increases
18.
STEM Compton Effect Problem 6: In the Compton scattering effect, when a high-energy X-ray photon collides with a free stationary electron, which change occurs to the scattered photon?
Its speed decreases significantly while wavelength remains constant
Its mass increases while kinetic energy decreases
Its frequency increases and energy increases
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
19.
STEM Semiconductor Electronics Problem 44: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
By doping with pentavalent Phosphorus atoms
By cooling silicon to absolute zero Kelvin
By heating pure silicon above 1,000°C without impurities
By doping the silicon crystal with trivalent impurity atoms (such as Boron or Aluminum), creating positive holes as majority carriers
20.
In an oscillating LC tank circuit, continuous electromagnetic oscillations are naturally damped and die out over time because of:
D) Nuclear decay of the conducting plates
A) The back EMF of the coil
B) Energy dissipated as heat in the resistance of the connecting wires and coil
C) The leakage of electric field outside the capacitor
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