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12th Maharashtra Board
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What is logic gate? Write down the truth table and Boolean expression for 'AND' gate.

Important Questions on Semiconductor Devices

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12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 16 - Semiconductor Devices>Exercises>Q 13
What are the uses of logic gates? Why is a NOT gate known as an inverter?
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12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 16 - Semiconductor Devices>Exercises>Q 15
Why is the emitter, the base and the collector of a BJT doped differently?
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12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 16 - Semiconductor Devices>Exercises>Q 16
Which method of biasing is used for operating transistor as an amplifier?
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12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 16 - Semiconductor Devices>Exercises>Q 17
Define α and β for a transistor. Derive the relation between them.
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12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 16 - Semiconductor Devices>Exercises>Q 18
The common-base DC current gain of a transistor is 0.967. If the emitter current is 10 mA. What is the value of base current?
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12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 16 - Semiconductor Devices>Exercises>Q 19

In a common-base connection, a certain transistor has an emitter current of 10 mA and collector current of 9.8 mA. Calculate the value of the base current.

MEDIUM
12th Maharashtra Board
IMPORTANT
Physics Standard 12>Chapter 16 - Semiconductor Devices>Exercises>Q 20

In a common-base connection, the emitter current is 6.28 mA and collector current is 6.20 mA. Determine the common base DC current gain.