Question is ⇒ A two port network is symmetrical if, Options are ⇒ (A) z11 z12 - z12 z21 = 1, (B) AD - BC = 1, (C) h11 h22 - h12 h41 = 1, (D) y11 y22 = y12 y21 = 1, (E) , Leave your comments or Download question paper.

Question is ⇒ A two port network is symmetrical if, Options are ⇒ (A) z11 z12 - z12 z21 = 1, (B) AD - BC = 1, (C) h11 h22 - h12 h41 = 1, (D) y11 y22 = y12 y21 = 1, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A two port network is symmetrical if
A.	z₁₁ z₁₂ - z₁₂ z₂₁ = 1 [Wrong Answer]
B.	AD - BC = 1 [Wrong Answer]
C.	h₁₁ h₂₂ - h₁₂ h₄₁ = 1 [Correct Answer]
D.	y₁₁ y₂₂ = y₁₂ y₂₁ = 1 [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C 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 :

⇒ In the network of figure, the voltage drops across R₁, R₂, R₃ are 6 V, 8 V and 12 V with polarities as shown. The value of R_{312 Ω
8 Ω
5 Ω
3 Ω}

⇒ Electric breakdown strength of a material depends on its
composition
moisture content
thickness
all of the above

⇒ If temperature is increased, the temperature coefficient of a metal
increases
decreases
may increase or decrease
remains constant

⇒ In a varistor the v-i graph is linear.
TRUE
FALSE

⇒ BCD number 1100111 = __________ ₁₀
66
67
68
69

⇒ For the circuit shown in the figure, the current
indeterminate due to indeterminate data
zero
4 Amp
8 Amp

⇒ The dual of A + [B + (AC)] + D is
A + [(B (A + C))] + D
A [B + AC] D
A + [B (A + C)] D
A [B (A + C)] D

⇒ The input impedance of short-circuited line of length l where λ/4 < l < λ/2, is
resistive
inductive
capacitive
none of the above

⇒

Assertion (A): Impatt diode is an avalanche diode.

Reason (R): Avalanche breakdown phenomenon occurs when a p-n junction is reverse biased.

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
A is wrong but R is correct

⇒ For a 400 kHz transmission line having L = 0.5 mH/km, C = 0.08 mF and negligible R and G, the velocity propagation will be
15.8303 km/s
15.830 km/s
1.583 km/s
0.1583 km/s

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

⇒

Assertion (A): A hot wire ammeter has a cramped scale.

Reason (R): The heat is proportional to square of current.

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

⇒ Figure shows a NAND latch used as a switch debouncer. With the switch in STOP position. Q will be equal to
0
1
CLK
none of these

⇒ Which of the following modes can exist in a rectangular waveguide?
TM₁₀
TE₁₀
TM₀₀
TM₀₁

⇒ A circuit which cannot demodulate SSB is
balanced modulator
product detector
BFO
phase discriminator

⇒ Which of the following noise becomes of great importance at high frequencies?
Transit-time noise
Shot noise
Flicker noise
Agitation noise

⇒ Hall effect can be used to find the type of semiconductor.
TRUE
FALSE

⇒ In figure we need an ac ground. The proper value of
1000 μF
100 μF
10 μF
1 μF

⇒ If E_b, the energy per bit of a binary digital signal is 10^-6 watt sec. and the one sided power spectral density of the white noise N₀ = 10^-5 W/Hz, then the output SNR of the matched filter is
26 dB
10 dB
20 dB
13 dB

⇒ The two modes of operation of three phase bridge inverters are known as
60° mode and 120° mode
90° mode and 120° mode
120° mode and 180° mode
120° mode and 240° mode

⇒ A periodic voltage has following values for equal time intervals changing suddenly from one value to next, 0, 5, 10, 20, 50, 60, 50, 20, 10, 5, 0, -5, -10 etc. then rms value of the waveform is
31 volt
32 volt
insufficient data
none

⇒ ALU carries out
arithmetic operations
logic operations
both arithmetic and logic operations
none of the above

⇒ Pulse stuffing is used in
synchronous TDM
asynchronous TDM
Any TDM
All

⇒ The effective height of an antenna is slightly greater than physical height because
wave velocity in conductor is less than its velocity in free space
wave velocity in conductor is more than its velocity in free space
resistance of conductor is less than that of free space
none of the above

⇒ Which of the following is a self-complementing code?
8421 code
Excess 3 codes
Pure binary code
Gray code

⇒ A three terminal monolithic IC regulator can be used as
an a adjustable output voltage regulator alone
an adjustable output voltage regulator & a current regulator
a current regulator & a power switch
a current regulator alone

⇒ A choke coil of resistance R and inductance L is shunted by capacitor C. The dynamic resistance is
R/LC
C/RL
L/RC
1/RLC

⇒ The 6 V zener diode shown in figure has zero zener resistance and a knee current of 5 mA. The minimum value of R, so that the voltage across it does not fall below 6
1.2 kΩ
80 Ω
50 W
0

⇒ Consider the z-transform X(z) = 5z² + 4z^-1 + 3; 0 < |z| < ∞ The inverse transform x[n] is
5δ[n + 2] + 3δ[n] + 4δ[n - 1]
5δ[n - 2] + 3δ[n] + 4δ[n + 1]
5u[n + 2] + 3u[n] + 4u[n - 1]
5u[n - 2] + 3u[n] + 4u[n + 1]

⇒ Which of the following are the properties of a medium?
Permeability, flux, magnesium
Permittivity, permeability, insulation
Permeability, resistivity, conductivity
Permittivity, permeability, conductivity