Electrical Troubleshooting MS vs Electromagnetic Theory Quiz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electrical Troubleshooting MS
Learn to troubleshoot electrical circuits with a virtual voltmeter and PLC logic. This app offers 17 random electrical problems for a challenging learning experience, allowing you to practice identifying issues in motor starters and control circuits.
- 17 random electrical problems
- Virtual voltmeter with probes
- Animated motor starter
- Switch between schematic and PLC logic
- Troubleshooting Assistant
- Normal and troubleshooting modes
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Totally FREE! No ads or pop-ups! How this App Works: This app has 17 different electrical problems that are randomly selected to provide a fun and challenging learning experience. It is certain to help you become more proficient in troubleshooting with a voltmeter. The motor starter is animated so that you can SEE the different contact configurations between forward and reverse. Another unique feature of this app is the ability to instantly switch back and forth between the control schematic and the real time PLC logic. There is also a "Troubleshooting Assistant" to help test the control circuit and find the problems. The app is initially in normal mode. This allows you to experience: - How a reversing starter works. - How to use the virtual voltmeter probes to measure voltages at various test points (small black squares, which turn red when the voltmeter makes contact with them) in the control circuit. - Analyze the PLC logic, when the starter is in various control modes Run (FWD & Rev), Off and Auto (FWD & REV). The HMI only has control in Auto. The selector switches work as indicated by control circuit. After the you understand how the motor starter works in the various control modes, you can check your troubleshooting skills by going to "Settings" (touch the 'More' button (at the top of the app) and then the gear icon) and selecting troubleshooting mode. Touch the "Arrow Back" icon to return to the control schematic. You will notice that the screen background has turned a light green, indicating that it is in troubleshooting mode and has a problem that needs to be found. Use the "Troubleshooting assistant" at the top, right side of the control schematic to help set the operator switches for testing. Use the voltmeter probes and PLC logic screen to identify the problem. Once you believe that you have identified the problem, touch "Problem Identified" button at the top of the app. A list of possible problems will appear. If you cannot determine the problem, at the bottom of the list, there is an item to provide the answer. If you desire to put the control system back in to normal (Non Troubleshooting Mode - No electrical problems) to learn more about how it is suppose to work, go to the settings section and unselect "Troubleshooting Mode". It is truly a great learning tool for anybody that wants to be able to fully utilize a voltmeter to troubleshoot a control circuit.
Electromagnetic Theory Quiz
Practice over 500 multiple-choice questions on electromagnetic theory. This app offers self-assessment tests and revision notes for engineering students, covering basic to advanced topics. It's designed for quick study and exam preparation.
- 500+ electromagnetic theory MCQs
- Self-assessment tests
- Revision notes
- Covers basic and advanced topics
- Quick study guide
- Exam preparation
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Electromagnetic theory quiz app with free download to install electronics app (iOS) to practice 500+ electromagnetic theory quiz based MCQs. "Electromagnetic Theory Quiz" app with trivia questions and answers for engineering college students to download electromagnetic theory MCQs with self-assessment tests. "Electromagnetic Theory Learning" app with answers key helps to practice test questions for online virtual classroom exam on iOS smartphones. Complete electromagnetic theory quiz app for online degree programs covers basic and advance engineering school course with trivia quizzes. "Electromagnetic Theory Revision" app is a quick study guide, an educational tool for beginners' learning and distance education with electronics textbook course as: Chapter 1: Electrical properties of dielectric quiz Chapter 2: Electrical properties of matter quiz Chapter 3: Metamaterials quiz Chapter 4: Time varying and harmonic electromagnetic fields quiz Download "Electrical Properties of Dielectric Quiz" app to install revision notes with MCQs: Dielectric constant of dielectric materials, dielectric constitutive relationship, dielectric permittivity, dielectrics basics, electric and magnetic dipoles, electrical polarization production, electronic polarization production, examining material microscopically, ferroelectrics, ionic polarization production, nonpolar dielectric materials, oriental polarization, and polar dielectric materials. Download "Electrical Properties of Matter Quiz" app to install revision notes with MCQs: Introduction to matter, atoms and molecules, Bohr's model, DNG, and electromagnetic theory. Download "Metamaterials Quiz" app to install revision notes with MCQs: Introduction to metamaterials, base metals, chiral metamaterials, cloak devices, dilute metals, Drude model, Drude-Lorentz model, finite element method, FDTD grid truncation techniques, Fermat's principle, ferrites, FIM history, FIM structure, finite difference time domain, finite difference time domain history, finite difference time domain method, finite difference time domain popularity, harmonic plane, left hand materials, Maxwell's constitutive equation, metamaterial structure, metamaterials basics, metamaterials permittivity, metamaterials planes, metamaterials: electric and magnetic responses, monochromatic plane, noble metals, refractive index, Snell's law, split ring resonator, strengths of FDTD modeling, tunable metamaterials, types of finite element method, wave vector, and weakness of FDTD modeling. Download "Time Varying and Harmonic Electromagnetic Fields Quiz" app to install revision notes with MCQs: Ampere's law, boundary conditions, boundary value problems, charge density, curl operator, differential form of Maxwell's equations, displacement current density, divergence operator, electric charge density, electric field intensity, electric flux density, electromagnetic field theory, electromagnetic spectrum, Euclidean plane, gauss's law, introduction to electromagnetic fields, introduction to electromagnetic theory, Laplacian operator, Lorentz force, magnetic charge density, magnetic field intensity, magnetic flux density, Maxwell's equations, oscillations, photon energy, and surface current density. "Electromagnetic Theory MCQ" app helps to solve electronics multiple choice questions from every chapter, comparing with answer key after every 10 random trivia quiz questions. Looking forward to provide best user experience through electromagnetic theory application!
Screenshots
Verdict
The clearest difference is in-app purchases: Electrical Troubleshooting MS at none against Electromagnetic Theory Quiz's 7. Electrical Troubleshooting MS also leads on ads (none vs shown) and ratings volume (122 vs 1). Electromagnetic Theory Quiz's advantage is rating (5.0 vs 4.8). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Electromagnetic Theory Quiz sells 7 in-app purchases, starting at $4.99 per month. Electrical Troubleshooting MS asks for nothing beyond the download.
Electromagnetic Theory Quiz holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Electrical Troubleshooting MS has 122 ratings behind it against 1, so its average is the more settled of the two.
Electrical Troubleshooting MS ships an update weekly, Electromagnetic Theory Quiz every 2 weeks. Both last shipped on November 3, 2026.
| Parameter | Electrical Troubleshooting MS | Electromagnetic Theory Quiz |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (122 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 88.2% of reviews | — |
| Number of ratings | 122 — better | 1 |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | David White | Arshad Iqbal |
In-app purchases
Electrical Troubleshooting MS
No in-app purchases
Electromagnetic Theory Quiz
- 1 Month Package3 Days trial$4.991 Month
- 3 Months Package7 Days trial$9.993 Months
- 6 Months Package3 Days trial$14.996 Months
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- 1 Year Package7 Days trial$19.991 Year
- 1500 Coins$0.99
- 3500 Coins$1.99
- 6000 Coins$2.99
Questions
Is Electrical Troubleshooting MS free?
Is Electromagnetic Theory Quiz free?
Which has better reviews, Electrical Troubleshooting MS or Electromagnetic Theory Quiz?
Do Electrical Troubleshooting MS or Electromagnetic Theory Quiz have ads?
Which is updated more often, Electrical Troubleshooting MS or Electromagnetic Theory Quiz?
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