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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.
In the circuit, E = 12 V (no internal resistance) and each diode has forward voltage 0 V. Find the current from the battery.
In the circuit, E = 12 V (no internal resistance) and each diode has forward voltage 0 V. Find the current from the battery.
180 mA
40.0 mA
60.0 mA
104 mA