Question is ⇒ If μn is mobility of free electron and μp is mobility of holes then for silicon at 300 K, Options are ⇒ (A) μn = μp, (B) μn > μp, (C) μn < μp, (D) μn may be more or less than μp, (E) , Leave your comments or Download question paper.

Question is ⇒ If μn is mobility of free electron and μp is mobility of holes then for silicon at 300 K, Options are ⇒ (A) μn = μp, (B) μn > μp, (C) μn < μp, (D) μn may be more or less than μp, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	If μ_n is mobility of free electron and μ_p is mobility of holes then for silicon at 300 K
A.	μ_n = μ_p [Wrong Answer]
B.	μ_n > μ_p [Correct Answer]
C.	μ_n < μ_p [Wrong Answer]
D.	μ_n may be more or less than μ_p [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : B 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 :

⇒ Fourier series is applicable for
periodic
finite duration
non periodic
a and b

⇒ Which one is not correct for folded dipole antenna?
High I/P impedance
Low I/P impedance
High bandwidth
Used as reactance compensation network

⇒ If B_max is the maximum flux density, eddy current loss is proportional to
B_max
B^1.6_max
B²_max
B³_max

⇒ The address to which a software or hardware restart branches is known as
Vector location
SID
SOD
TRAP

⇒ In control systems the word controller includes
error detector and feedback element
feedback element and control elements
error detector and control elements
error detector, control elements and feedback elements

⇒ Consider the following statements regarding phase sensitive detector

The detector reads zero when phases of input signal and reference signal are different.
The detector acts as a linear rectifier.
The detector can be used as vector voltmeter.

Of the above statements which are correct?
1, 2, 3
1 and 2
2 and 3
1 and 3

⇒ In the op-amp circuit of figure, V_{010 V
-10 V
5 V
-5 V}

⇒ Which of following digital modulation technique?
ASK
FSK
PSK
All

⇒ In the analogy between electric and magnetic circuits permeability is analogous to
resistivity
conductivity
electric field intensity
current density

⇒ In the circuit shown the voltage V_s has a phase angle of __________ with respect to V_{L120°
60 °
-90 °
0°}

⇒

Assertion (A): The response of a network to an impluse is determined only by the parameters of the network.

Reason (R): If f(t) is a unit parabolic function, its Laplace transform is 1/s³

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

⇒ Which of the following is not a valid variable name in C?
p o, t
p o t
po_t
p_ot

⇒ Identification of highest priority interrupt can be achieved in a minimum time by which of the following schemes?
Hardwired polling
Priority encode circuit
Software polling
Subdivision of interrupt register into a number of sub registers which are checked parallely

⇒ For a BJT, under the saturation condition,
I_C = βI_B
I_C = aI_B
I_C is independent of all other parameters
I_C < βI_B

⇒ Which of the following analog modulation scheme requires the minimum transmitted power and minimum channel bandwidth?
VSB
DSB-SC
SSB
AM

⇒ The phase difference (jω - p₁ )
phasor directed from p₁ to jω
phasor directed from origin to p₁
phasor directed from origin to jω point
phasor directed from jω to p₁

⇒ A transducer must have
good dynamic response
good sensitivity
good resolution
all of the above

⇒ In n channel JFET, the gate voltage is made more negative
the channel width will increase
the channel width will decrease
the channel width and drain current will decrease
the channel width will decrease and drain current will increase

⇒

Assertion (A): The data bus and address bus of 8085 are multiplexed.

Reason (R): Multiplexing reduces the number of pins.

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 R is wrong
A is wrong R is correct

⇒ A parabolic antenna produces a radiation pattern which is
circularly polarized
highly directional
omnidirectional
linearly polarized

⇒ Consider the following DO statement in Fortran 77 10
2
5
zero

⇒ The phase margin and damping ratio have no relation.
TRUE
FALSE

⇒ The internal structure of PL A is similar to
RAM
ROM
both RAM and ROM
neither RAM nor ROM

⇒

Assertion (A): The polynomial s³ + 6s² + 12s + 8 is Hurwitz.

Reason (R): In a Hurwitz polynomial all coefficients are non-negative.

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

⇒ In a CE amplifier the dc load line is the same as ac load line when
ac collector resistance and dc collector resistance are equal
ac collector resistance and dc emitter resistance are equal
ac collector resistance is very high
ac collector resistance is one half of dc collector resistance

⇒

Match the following:

	List I		List II
A.	Ring modulator	1.	Clock recovery
B.	VCO	2.	Demodulation of FM
C.	Foster Seeley discriminator	3.	Frequency conversion
D.	Mixer	4.	Summing of two points
		5.	Generation of FM
		6.	Generation of DSB-SC

A-1, B-3, C-2, D-4
A-6, B-5, C-2, D-3
A-6, B-1, C-3, D-2
A-5, B-6, C-1, D-3

⇒ In audio cassettes the width of each recording track is
5 mm
2.5 mm
1.5 mm
1 mm

⇒ Noise with double-sided power spectral density of K overall frequencies is passed through a RC low pass filter with 3 dB cut-off frequency of f_c. The noise power at the filter output is
K
Kf_c
Kpf_c
∞

⇒ While keeping the down-link frequency constant, the diameter of a satellite antenna is reduced by half. To offer the same EIRP over the increased coverage area, the RF output power has to be increases by a factor of
2
4
8
16

⇒ Capture effect occurs in
AM
FM
PCM
QAM