Question is ⇒ Which is correct for a vacuum triode?, Options are ⇒ (A) μ = rpgm, (B) rp = μgm, (C) gm = μrp, (D) rpgm, (E) , Leave your comments or Download question paper.

Question is ⇒ Which is correct for a vacuum triode?, Options are ⇒ (A) μ = rpgm, (B) rp = μgm, (C) gm = μrp, (D) rpgm, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Which is correct for a vacuum triode?
A.	μ = r_pg_m [Wrong Answer]
B.	r_p = μg_m [Correct Answer]
C.	g_m = μr_p [Wrong Answer]
D.	r_pg_m [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 :

⇒ Breakdown in dielectric may be
electrical breakdown
thermal breakdown
electrochemical breakdown
any of the above

⇒ In rectifier circuits, the rms value of ac component of output voltage is equal to
V_rms
0.5 V_rms
(V_rms - V_dc)^0.5
(V_rms² - V_dc²)^0.5

⇒ In figure, D₁ turns on
v_i is more than V₁
v_i is less than V₁
v_i is between V₁ and V₂
none of the above

⇒ Which part of radio spectrum is more crowded?
Lower frequency part
Higher frequency part
Both (a) and (b)
None of these

⇒ An ac network has a power factor of 0.8 leading if the applied wave is of fundamental frequency. If the applied wave contains third and fifth harmonics, the overall power factor will be
0.8 leading
less than 0.8 leading
more than 0.8 leading
0.8 leading or more

⇒ In figure, the battery has remained switched on for a long time. At t = 0 the switch is closed. The current i(t) is likely t
6
6 - 3e^-1
6 + 3e^-1
3 - 6e^-1

⇒ Which statement is correct?
BJT and MOSFET are current controlled devices
BJT is voltage controlled and MOSFET is current controlled device
BJT and MOSFET are voltage controlled devices
BJT is current controlled and MOSFET is voltage controlled device

⇒ The terminals of a power BJT are called
emitter, base, collector
emitter, base, drain
source, base, drain
source, base, collector

⇒ Which of the following is true?
Intel 8080 was the ancestor of Intel 8085
Intel 8080 was the ancestor of Intel Z 80
Intel 8080 was the ancestor of both Intel 8085 and Z 80
Intel 8085 was the ancestor of Intel 8085

⇒ If the characteristic equation is (λ + 1) (λ + 2) (λ + 3) = 0, the eigen values are
-1, -2, -3
1, 2, 3
0, 1, 2
0, 2, 3

⇒ The statement IMPLICIT INTEGER (A - F) in FORTRAN identifies
all variable names which begin with A, B, C, D, E or F as being of integer type
all character names which begin with A, B, C, D, E, or F as being of integer type
all variable names which begin with A and have 6 characters
none of the above

⇒

Assertion (A): In a circuit having high inductance, reactive power may be more than apparent power.

Reason (R): Reactive power = VI sin θ.

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 the analysis of common emitter amplifier we may neglect
h_re
h_oe
h_fe
h_ie

⇒ The inductance of a coil can be increased by
choosing core material having high relative permeability
decreasing diameter of the former
decreasing the number of turns
increasing core length

⇒

Assertion (A): The h-parameter model of a BJT can be derived from its hybrid-p model and vice-versa.

Reason (R): The hybrid-p model has many more additional elements as compared to h-parameter model of the BJT.

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

⇒ Rayleigh current balance is an absolute instrument.
TRUE
FALSE

⇒ In a mod-12 counter the input clock frequency is 10 kHz. The output frequency is
0.833 kHz
1.0 kHz
0.91 kHz
0.77 kHz

⇒ 39.12₁₀ = __________ ₁₀
10111.0001111
100011.0001111
100001.0001111
1111.0001111

⇒ In a transistor receiver, the use of FET as the first stage amplifier is likely to
improve selectivity of the receiver
improve the effectiveness of the AGC
reduce the effect of negative peak clipping
reduce the effect of noise at all frequencies

⇒ Trap circuits used in video IF amplifier of colour TV are
High Q, LC resonant circuit
Low Q, LC resonant circuit
High Q, RLC resonant circuit
Low Q, RLC resonant circuit

⇒ A LASCR has
4 semiconductor layers and 3 junctions
3 semiconductor layers and 2 junctions
2 semiconductor layers and 2 junctions
any of these depending on the rating

⇒ Free electrons exist in
first band
second band
third band
conduction band

⇒ The modulation index of an FM is changed from 0 to 1. How does the transmitted power change?
Gets halved
Gets doubled
Gets increased by 50 percent
Remains unchanged

⇒ In a single-stage RC coupled common emitter amplifier, the phase shift at the lower 3 dB frequency is
zero
135°
180°
225°

⇒ When P-N junction is in forward bias, by increasing the battery voltage
current through P-N junction reduces
current through P-N junction increases
circuit resistance increases
none of the above

⇒ Integrated fin line can be utilized as a medium for constructing millimeter wave circuits.
TRUE
FALSE

⇒ Which statement is incorrect for parallel resonance?
P.f. is 1
Y is minimum
B is zero
Z is minimum

⇒ Zener diode is invariably used with
forward bias
reverse bias
either (a) or (b)
zero bias

⇒ The function of duplexer in a RADAR is
to permit the use of same antenna for transmission and reception
to provide gain to the transmitted power
to amplify the received signal
both (b) and (c)

⇒ Whereas resonant antenna is bidirectional, non-resonant antenna is unidirectional.
TRUE
FALSE