Curriculum
Login

Curriculum

Physics

Chapter 1 - Electric Current, Ohms Law and Kirchhoffs Laws

0/20

Chapter 2 - Magnetic Effects of Electric Current and Measuring Instruments

0/22

Chapter 3 - Electromagnetic Induction and AC Dynamo and Transformer

0/24

Chapter 4 - Alternating Current AC Circuits

0/30

Chapter 5 - Dual Nature of Wave and Particle

0/33

Chapter 6 - Atomic Spectra and X-Rays

0/28

Chapter 7 - Lasers and Principles

0/31

Chapter 8 - Modern Electronics and Semiconductors

0/31

More lessons

0/83
Quiz

Lesson 3 Quiz: The Alternating Current Generator (AC Dynamo) and Rectification

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 20
Start Quiz
1.
STEM Compton Effect Problem 41: 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)
2.
STEM Compton Effect Problem 27: 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 mass increases while kinetic energy decreases
Its frequency increases and energy increases
Its speed decreases significantly while wavelength remains constant
3.
STEM Semiconductor Electronics Problem 8: 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 doping with pentavalent Phosphorus atoms
By heating pure silicon above 1,000°C without impurities
By cooling silicon to absolute zero Kelvin
4.
STEM Physics Problem 16: A copper wire of resistance 8.0 Ω is drawn out uniformly so that its length increases to three times its original value. Assuming constant mass and density, what is the new resistance of the wire?
72.0 Ω
24.0 Ω
16.0 Ω
2.67 Ω
5.
STEM Alternating Current Dynamo Problem 19: 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)
311 V
440 V
110 V
220 V
6.
STEM Physics Problem 30: A copper wire of resistance 8.0 Ω is drawn out uniformly so that its length increases to three times its original value. Assuming constant mass and density, what is the new resistance of the wire?
16.0 Ω
2.67 Ω
72.0 Ω
24.0 Ω
7.
STEM Alternating Current Dynamo Problem 44: 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
220 V
311 V
8.
STEM Semiconductor Electronics Problem 14: How is a p-type semiconductor crystal produced from pure intrinsic silicon?
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
By cooling silicon to absolute zero Kelvin
By heating pure silicon above 1,000°C without impurities
9.
STEM Semiconductor Electronics Problem 4: 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 doping with pentavalent Phosphorus atoms
By heating pure silicon above 1,000°C without impurities
By cooling silicon to absolute zero Kelvin
10.
STEM Alternating Current Dynamo Problem 22: 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)
311 V
440 V
220 V
110 V
11.
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 frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its frequency increases and energy increases
Its speed decreases significantly while wavelength remains constant
Its mass increases while kinetic energy decreases
12.
The mechanical advantage (eta) of an ideal hydraulic press equals all of the following ratios EXCEPT:
Distance moved by the small piston / Distance moved by the large piston (y1 / y2)
Work done by the large piston / Work done on the small piston > 1
Force on the large piston / Force on the small piston (F / f)
Area of the large piston / Area of the small piston (A / a)
13.
STEM Physics Problem 31: A copper wire of resistance 8.0 Ω is drawn out uniformly so that its length increases to three times its original value. Assuming constant mass and density, what is the new resistance of the wire?
2.67 Ω
72.0 Ω
24.0 Ω
16.0 Ω
14.
STEM Physics Problem 13: A copper wire of resistance 8.0 Ω is drawn out uniformly so that its length increases to three times its original value. Assuming constant mass and density, what is the new resistance of the wire?
72.0 Ω
2.67 Ω
16.0 Ω
24.0 Ω
15.
STEM Alternating Current Dynamo Problem 12: 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
311 V
440 V
220 V
16.
STEM Alternating Current Dynamo Problem 20: 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)
311 V
440 V
110 V
220 V
17.
STEM Compton Effect Problem 2: 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 frequency decreases, its wavelength increases, and its speed remains strictly c (speed of light)
Its speed decreases significantly while wavelength remains constant
18.
STEM Semiconductor Electronics Problem 37: 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
19.
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
311 V
440 V
220 V
20.
STEM Compton Effect Problem 11: 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
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20