NEET Physics: Electronic Devices — MCQ Test 2

Q6. Why is carbon an insulator while silicon and germanium are semiconductors?

Q7. In a reverse-biased p-n junction, the dominant current is due to:

Q8. A pure Ge crystal has \( 4 \times 10^{28} \, \text{atoms} \, \text{m}^{-3} \) and is doped with 2 ppm of trivalent impurity. The number of acceptor atoms per cubic meter is:

Q9. The charge of an acceptor atom in a p-type semiconductor is effectively:

Q10. The resistivity of insulators is typically in the range:

NEET Physics — Electronic Devices

Free MCQ Test 2 of 9

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In a full-wave rectifier with a capacitor filter, the output voltage is closer to:

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Electronic Devices. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Rectifier, Capacitor, Following, Characteristic, Semiconductors, and Constant.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. In a full-wave rectifier with a capacitor filter, the output voltage is closer to:

  • A. Average voltage
  • B. RMS voltage
  • C. Zero
  • D. Peak voltage

Q2. Which of the following is NOT a characteristic of semiconductors?

  • A. Covalent bonding
  • B. High conductivity
  • C. Intermediate resistivity
  • D. Temperature-dependent conductivity

Q3. The time constant of a capacitor filter in a rectifier depends on:

  • A. Input frequency
  • B. Capacitance and load resistance
  • C. Diode resistance
  • D. Voltage amplitude

Q4. The diode in a rectifier circuit must have a reverse breakdown voltage:

  • A. Equal to peak AC voltage
  • B. Less than peak AC voltage
  • C. Zero
  • D. Higher than peak AC voltage

Q5. The primary function of a p-n junction diode is to:

  • A. Rectify alternating current
  • B. Amplify signals
  • C. Generate oscillations
  • D. Store charge

+ 5 more questions in the actual test

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