MDCAT Physics Chapter 9 MCQ Test With Answer (Electronics)

Electronics is one of the most modern and practical chapters in MDCAT Physics. It connects theoretical physics with real-life applications such as semiconductors, diodes, transistors, and logic gates. Since medical instruments and modern healthcare technologies also use electronics, MDCAT authorities always assign a good weightage to this chapter.

To help MDCAT aspirants prepare better, we provide a chapter-wise MCQ test with answers for Physics Chapter 9: Electronics, following the official UHS MDCAT syllabus. This resource allows students to strengthen their concepts, practice numerical-based problems, and achieve accuracy in the exam.

Why Electronics is Important for MDCAT?

📌 Electronics forms the backbone of modern medical equipment such as ECG machines, MRI scanners, and X-ray devices.
📌 MDCAT exams typically feature 4–6 MCQs from Electronics.
📌 Questions are often conceptual + numerical, covering diodes, rectifiers, logic gates, and semiconductor properties.
📌 Practicing chapter-wise MCQs ensures time management and helps identify weak areas before the exam.

MDCAT Physics Chapter 9 Syllabus (Electronics)

According to the UHS-prescribed MDCAT Physics syllabus, Chapter 9 (Electronics) includes the following key areas:

1. Semiconductors
   • Types: n-type & p-type
   • Intrinsic vs extrinsic semiconductors
2. p-n Junction Diode
   • Working mechanism
   • Forward bias & reverse bias
   • Applications in rectification
3. Rectifiers
   • Half-wave rectifier
   • Full-wave rectifier
4. Transistors
   • NPN and PNP transistors
   • Working in common emitter configuration
   • Applications in amplification
5. Logic Gates
   • AND, OR, NOT, NAND, NOR
   • Truth tables and basic digital logic
6. Applications of Electronics
   • Modern communication
   • Digital systems in medical and health sciences

Key Formulas and Concepts

• Diode Current Equation: I=I0(eqVkT−1)I = I_0 \left(e^{\frac{qV}{kT}} - 1\right)I=I0​(ekTqV​−1)
• Rectification Efficiency (Half-Wave): η=40.6%\eta = \frac{40.6\%}{}η=40.6%​
• Rectification Efficiency (Full-Wave): η=81.2%\eta = 81.2\%η=81.2%
• Truth Table Basics:
  • AND gate → Output is 1 only if both inputs are 1
  • OR gate → Output is 1 if any input is 1
  • NOT gate → Output is always opposite of input

Preparation Tips for MDCAT Electronics

✔ Revise semiconductor physics and the behavior of p-n junction diodes.
✔ Understand rectifiers and their differences (half-wave vs full-wave).
✔ Practice logic gate truth tables, as at least one MCQ is expected.
✔ Focus on transistor applications, especially amplification and switching.
✔ Attempt chapter-wise MCQs with answers to master both theory and application.

MDCAT Physics Chapter 9 MCQ Test With Answer (Electronics)

We have designed a 51-question MCQ test with answers from Chapter 9: Electronics. These questions cover all important topics including semiconductors, diodes, rectifiers, transistors, and logic gates.

📌 Total Questions: 51
📌 Time Allowed: 51 minutes
📌 Difficulty Level: According to UHS MDCAT pattern
📌 Answer Key: Provided for self-assessment

Final Words

Electronics is not only crucial for MDCAT Physics but also a subject that strengthens your understanding of modern technology and its applications in medical sciences. By solving the chapter-wise MCQs with answers, you can improve your accuracy, identify weak points, and perform confidently in the exam.

👉 Start practicing the MDCAT Physics Chapter 9 Electronics MCQ Test With Answer today and take your preparation to the next level.