MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 55

EASY

MHT-CET

IMPORTANT

Earn 100

Assertion: Light emitting diode ( $LED$ ) emits spontaneous radiation.

Reason: $LED$ are forward biased $p - n$ junctions.

50% studentsanswered this correctly

Important Questions on Semiconductors

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 56

Generally, the base of a transistor has a thickness of the order of

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 61

In the three parts of a transistor, emitter is of

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 62

The part of a transistor which is heavily doped to produce a large number of majority carriers, is

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 64

In a common emitter amplifier circuit using an

n - p - n

transistor, the phase difference between the input and the output voltages will be,

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 65

For a transistor, in a common emitter arrangement, the alternating current gain

β

-is given by

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 66

For a transistor,

α_{dc}

and

β_{dc}

are the current ratios, then the value of

\frac{β_{d c} - α_{d c}}{α_{d c} \cdot β_{d c}}

is

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 68

For a transistor, the current ratio

α_{dc} = \frac{69}{70}

. The current gain

β_{dc}

is

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Semiconductors>Competitive Thinking>Q 69

The value of

β

of a transistor is

19

. The value of

α

will be