Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 23

EASY

NEET

IMPORTANT

Earn 100

In an $n - p - n$ transistor working in active mode, the depletion region

50% studentsanswered this correctly

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

EASY

NEET

IMPORTANT

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

A common emitter amplifier is designed with

n - p - n

transistor

(α = 0.99)

. The input impedence is

1 kΩ

and load is

10 kΩ

. The voltage gain will be

HARD

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 26

A common-emitter transistor amplifier has a current gain of

50

. If the load resistance is

4 k Ω

and input resistance is

500 Ω

the voltage gain of the amplifier is

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 27

In case of NPN-transistors, the collector current is always less than the emitter current because

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 28

In an

n - p - n

transistor, the collector current is

10 mA

. If

90 %

of the electrons emitted reaches the collector, then the emitter current will be about

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 30

What is the power gain in a CE amplifier, where input resistance is

3 kΩ

and load resistance

24 kΩ

given

β = 6 ?

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 31

A transistor having

α = 0.99

is used in a common base amplifier. If the load resistance is

4.5 kΩ

and the dynamic resistance of the emitter junction is

50 Ω,

the voltage gain of the amplifier will be

HARD

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 32

In the following $n - p - n$ transistor amplifier circuit $β = 100 .$ The $V_{CE}$ and $V_{BE}$ of the transistor is

Question Image

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 24 - Semiconductor Electronics: Materials, Devices and Simple Circuits>Assignment>Q 33

The given transistor amplifier connection is

Question Image