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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 3 Quiz: Kirchhoffs First and Second Laws for Complex Circuits

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1.
STEM Semiconductor Electronics Problem 16: 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
2.
STEM Alternating Current Dynamo Problem 1: An AC generator coil of 100 turns and area 0.05 m2 rotates at 3,000 rpm in a uniform magnetic field of 0.14 T. What is the maximum electromotive force (EMF_max) generated? (Use π = 22/7)
110 V
220 V
440 V
311 V
3.
STEM Alternating Current Dynamo Problem 28: An AC generator coil of 100 turns and area 0.05 m2 rotates at 3,000 rpm in a uniform magnetic field of 0.14 T. What is the maximum electromotive force (EMF_max) generated? (Use π = 22/7)
110 V
440 V
311 V
220 V
4.
STEM Magnetic Force Problem 27: A straight conductor of length 0.50 m carries a current of 4.0 A in a uniform magnetic field of flux density 0.20 T. What is the magnetic force acting on the wire when it is inclined at 30° to the field lines?
0.40 N
0.10 N
0.346 N
0.20 N
5.
STEM Compton Effect Problem 8: 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)
6.
STEM Alternating Current Dynamo Problem 32: An AC generator coil of 100 turns and area 0.05 m2 rotates at 3,000 rpm in a uniform magnetic field of 0.14 T. What is the maximum electromotive force (EMF_max) generated? (Use π = 22/7)
220 V
440 V
311 V
110 V
7.
STEM Semiconductor Electronics Problem 30: 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
8.
STEM Compton Effect Problem 40: 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 increases and energy increases
Its mass increases while kinetic energy decreases
Its speed decreases significantly while wavelength remains constant
Its frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
9.
STEM Magnetic Force Problem 28: A straight conductor of length 0.50 m carries a current of 4.0 A in a uniform magnetic field of flux density 0.20 T. What is the magnetic force acting on the wire when it is inclined at 30° to the field lines?
0.10 N
0.20 N
0.40 N
0.346 N
10.
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 doping with pentavalent Phosphorus atoms
By cooling silicon to absolute zero Kelvin
11.
STEM Compton Effect Problem 38: 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 decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its mass increases while kinetic energy decreases
Its frequency increases and energy increases
12.
The mechanical advantage (eta) of an ideal hydraulic press equals all of the following ratios EXCEPT:
Area of the large piston / Area of the small piston (A / a)
Distance moved by the small piston / Distance moved by the large piston (y1 / y2)
Force on the large piston / Force on the small piston (F / f)
Work done by the large piston / Work done on the small piston > 1
13.
STEM Semiconductor Electronics Problem 38: 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
14.
STEM Alternating Current Dynamo Problem 24: An AC generator coil of 100 turns and area 0.05 m2 rotates at 3,000 rpm in a uniform magnetic field of 0.14 T. What is the maximum electromotive force (EMF_max) generated? (Use π = 22/7)
110 V
220 V
440 V
311 V
15.
STEM Magnetic Force Problem 42: A straight conductor of length 0.50 m carries a current of 4.0 A in a uniform magnetic field of flux density 0.20 T. What is the magnetic force acting on the wire when it is inclined at 30° to the field lines?
0.20 N
0.346 N
0.40 N
0.10 N
16.
STEM Alternating Current Dynamo Problem 34: An AC generator coil of 100 turns and area 0.05 m2 rotates at 3,000 rpm in a uniform magnetic field of 0.14 T. What is the maximum electromotive force (EMF_max) generated? (Use π = 22/7)
220 V
440 V
311 V
110 V
17.
STEM Compton Effect Problem 26: 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)
18.
STEM Alternating Current Dynamo Problem 37: An AC generator coil of 100 turns and area 0.05 m2 rotates at 3,000 rpm in a uniform magnetic field of 0.14 T. What is the maximum electromotive force (EMF_max) generated? (Use π = 22/7)
220 V
311 V
440 V
110 V
19.
STEM Compton Effect Problem 14: 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
20.
STEM Alternating Current Dynamo Problem 38: An AC generator coil of 100 turns and area 0.05 m2 rotates at 3,000 rpm in a uniform magnetic field of 0.14 T. What is the maximum electromotive force (EMF_max) generated? (Use π = 22/7)
220 V
110 V
311 V
440 V
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