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Which of the following arrangement of diodes represent reverse biasing?

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Important Questions on Semiconductor Electronics: Materials, Devices and Simple Circuits

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Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 3

The operation performed by the circuit as shown in figure, is

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Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 4
The current gain of a common emitter amplifier is 69. If the emitter current is 7.0 mA, the collector current is, 
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Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 5
Which of the following is incorrect for semiconductors?
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Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 6
The transistors provide good power amplification when they are used in
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Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 7
In a semiconductor, the concentration of electrons is 8×1014 per cm3 and that of the holes is 5×1012 per cm3. The semiconductor is _____.
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Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 8
In a P-N junction, the width of depletion layer, is
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Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 9

Which of the following statements is not true for Zener diode?

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Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 10
Diffusion current in a p–n junction is greater than the drift current in magnitude