Question is ⇒ The minority carrier life time and diffusion constant in a semiconductor material are respectively 100 microsecond and 100 cm<sup>2</sup>/sec. The diffusion length is, Options are ⇒ (A) 0.1 cm, (B) 0.01 cm, (C) 0.0141 cm, (D) 1 cm, (E) , Leave your comments or Download question paper.

Question is ⇒ The minority carrier life time and diffusion constant in a semiconductor material are respectively 100 microsecond and 100 cm<sup>2</sup>/sec. The diffusion length is, Options are ⇒ (A) 0.1 cm, (B) 0.01 cm, (C) 0.0141 cm, (D) 1 cm, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The minority carrier life time and diffusion constant in a semiconductor material are respectively 100 microsecond and 100 cm²/sec. The diffusion length is
A.	0.1 cm [Correct Answer]
B.	0.01 cm [Wrong Answer]
C.	0.0141 cm [Wrong Answer]
D.	1 cm [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ Consider the following statements about radar Beacon

It is also called transponder.
It includes pulse transmitter, receiver and antenna.
It replies with full power even when the signal receives is weak.

Which of the above statements are correct?
All
1 and 2 only
2 and 3 only
2 only

⇒

Assertion (A): A tuned amplifier uses a parallel tuned circuit

Reason (R): A tuned amplifier is used to amplify a narrowband frequencies

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct

⇒ Which of the following is not a valid real constant in C?
426
321
-621.231
201.2314

⇒ For input and later stages, BI-FET op-amp use
JFETs and MOSFETs respectively
MOSFETs and JFETs respectively
JFETs and BJTs respectively
BJTs and JFETs respectively

⇒ The minimum gate source voltage that creates the n-type inversion layer is called
cut off voltage
on voltage
threshold voltage
zener voltage

⇒ In a full wave rectifier circuit using centre tapped transformer, the peak voltage across half of the secondary winding is 30 V. Then PIV is
30 V
60 V
15 V
10 V

⇒ An alternating current or voltage is that which
changes in magnitude only
changes in direction only
both (a) and (b)
has a random movement of electrons

⇒ The relative stability of a system is given by
gain margin alone
phase margin alone
both phase and gain margins
either (a) or (b)

⇒ In measurements using strain gauge, the dummy strain gauge is used to
compensate for resistance of strain gauge
compensate for change in temperature
compensate for error due to change in voltage of battery
compensate for error in voltmeter

⇒ In a CE amplifier circuit the emitter by pass capacitor is remove. The ac output voltage
increases
remains the same
increases or decreases
decreases

⇒ An inductance having X_L = 5 Ω and a capacitance having X_C = 5 Ω are connected in parallel across 100 V, 50 Hz supply. The current drawn from source is
zero
20 A
40 A
28.28 A

⇒

LPEPSI
3
9
13
23



⇒ In magnetic film memory, the memory element consits of
plated wires
superconductive material
nickel iron alloy
doped aluminium

⇒ The electrochemical equivalent of a material
depends on its valency
depends on its atomic weight
depends on its valency and atomic weight
depends on the degree of hardness of the material

⇒ In the circuit shown below, the op-amp is ideal, the transistor has V_BE = 0.6 V and β = 150. Decide whether the feedback in the circuit is positive or negative and determine the voltage V at the output of the op
Positive feedback, V = 10 V
Positive feedback, V = 0 V
Negative feedback, V = 5 V
Negative feedback, V = 2 V

⇒ The signals in 8086 are in maximum mode when
MN / MX pin is tied to V_cc
MN / MX Pin is grounded
MN / Mx pin is left open
none of the above

⇒ A dielectric should have poor heat conductivity.
TRUE
FALSE



⇒ When a complex signals is used to frequency modulate a carrier, the resulting sideband distribution is
symmetrical about the carrier
not necessarily symmetrical about the carrier
decided by the predominant sidebands
none of the above

⇒ When the emitter current of a transistor is changed by 1 mA, its collector current changes by 0.990 mA. The common-emitter short-circuit current gain is
1
199
99
9.9

⇒ In a horizontal polarized wave
magnetic field is perpendicular to ground
magnetic field component is parallel to ground
electric field component is perpendicular to ground
electric field is parallel to ground

⇒ The open loop gain of an amplifier is 200. If negative feedback with β = 0.2 is used, the closed loop gain will be
200
40.12
4.878
2.2

⇒ In a rectifier circuit the filter capacitance is increased. Then the ripple will
increase
decrease
remain the same
either (a) or (b)

⇒ ADC 0804 is a
dual slope A/D converter
single slope A/D converter
successive approximation A/D converter
either (a) or (b)

⇒ The generally used value of EHV supply in TV receivers is
1 kV per diagonal cm
1 kV per diagonal inch
0.5 kV per diagonal cm
0, 5 kV per diagonal inch

⇒ A wire has a resistance R ohm. If another wire of the same material and same weight has double the diameter (as compared to the first wire), the resistance of the second wire will be
0.5 R
0.25 R
0.125 R
R/16

⇒ The proper exponential form of - 0.0032 in FORTRAN 77 is
-3.2 E - 3
-0.0032
-0.00032 EI
-0.032 E - 1

⇒ Assertion (A): BCD code is used in pocket calculators
Reason (R): BCD code is slower than binary.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true

⇒ A sphere with charge Q was placed in, but not touching a larger hollow sphere. If there is any charge initially on the outer sphere; to remove it the outer sphere was earthed momentarily, and then the inner sphere was removed. The charge remaining on the outer sphere was then measured. This charge was found to be __________ to the charge on the inner sphere.
equal and of same again
equal and of opposite sign
unequal and of same sign
unequal and of opposite sign

⇒ The application of gate signal decreases the break over voltage of on SCR.
TRUE
FALSE



⇒ Assertion (A): Temperature control of the passenger compartment of car uses both feed forward and feedback controls.
Reason (R): Feed forward control gives corrective action before the disturbance affects the output and feedback control applies corrective action after output changes.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
R is correct but A is wrong









Users Also Read
Previous Papers
Aptitude
Reasoning
Gen.Knowledge
Speak English
English / Verbal
Online / Mock Test
Vedic Math







    
	
	




    
	StudySite.org is world's best free online study content provider, Copyright © 2024 by 
StudySite.org All Rights Reserved