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Physics

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 1: Intrinsic and Doped Semiconductors, the p-n Junction and Transistors — Picture questions (exam style)

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1.
A 12 V peak, 50 Hz supply feeds a full-wave bridge rectifier with load 2200 Ω as shown; each diode drops 0.7 V. Find the peak load current.
A 12 V peak, 50 Hz supply feeds a full-wave bridge rectifier with load 2200 Ω as shown; each diode drops 0.7 V. Find the peak load current.
4.82 mA
3.41 mA
5.45 mA
5.14 mA
2.
A 15 V peak, 50 Hz supply feeds a half-wave rectifier with load 2200 Ω as shown; each diode drops 0 V. What is the ripple (pulse) frequency across the load?
A 15 V peak, 50 Hz supply feeds a half-wave rectifier with load 2200 Ω as shown; each diode drops 0 V. What is the ripple (pulse) frequency across the load?
50.0 Hz
200 Hz
100 Hz
25.0 Hz
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