Electronic Devices And Circuits MCQs

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Audio Devices Crossover Networks	Network Theroms
Two Port Network

[h] = ?

A. \(\begin{bmatrix} 4 & \frac{3}{2}\\ -2 & \frac{1}{2} \end{bmatrix}\)
B. \(\begin{bmatrix} -2 & \frac{1}{2}\\ 4 & \frac{3}{2} \end{bmatrix}\)
C. \(\begin{bmatrix} 4 & -\frac{3}{2}\\ 2 & \frac{1}{2} \end{bmatrix}\)
D. \(\begin{bmatrix} 2 & \frac{1}{2}\\ 4 & -\frac{3}{2} \end{bmatrix}\)

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[y] = ?

A. \(\begin{bmatrix} \frac{19}{10} & \frac{-9}{10}\\ -\frac{9}{10} & \frac{31}{10} \end{bmatrix}\)
B. \(\begin{bmatrix} \frac{19}{10} & \frac{-7}{10}\\ -\frac{7}{10} & \frac{31}{10} \end{bmatrix}\)
C. \(\begin{bmatrix} \frac{19}{10} & \frac{9}{10}\\ \frac{9}{10} & \frac{31}{10} \end{bmatrix}\)
D. \(\begin{bmatrix} \frac{19}{10} & \frac{7}{10}\\ \frac{7}{10} & \frac{31}{10} \end{bmatrix}\)

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The [y] parameter for a 2-port network and the network itself are given below. The value of Vo/vs is _______

A. 48274
B. 46038
C. 48611
D. 46039

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A 2-port resistive network satisfy the condition A = D = 3/2B = 4/3C. The z11 of the network is

A. 46115
B. 46085
C. 46056
D. 46083

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A 2-port network is driven by a source Vs = 100 V in series with 5 ohm, and terminated in a 25 ohm resistor. The impedance parameters are The Thevenin equivalent circuit presented to the 25 ohm resistor is

A. 80 v, 2.8 ohm
B. 160 v, 6.8 ohm
C. 100 v, 2.4 ohm
D. 120 v, 6.4 ohm

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Find V1 and V2.

A. -68.6 v, 114.3 v
B. 68.6 v, -114.3 v
C. 114.3 v, -68.6 v
D. -114.3 v, 68.6 v

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Find the value of Vth from the below circuit.

A. 1 v
B. 2 v
C. 3 v
D. 4 v

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Find the value of Rth (in Ohm) from the below circuit.

A. 2
B. 3
C. 4
D. 5

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A battery has a short-circuit current of 30 A and an open circuit voltage of 24 V. If the battery is connected to an electric bulb of resistance 2 ohm-1, the power dissipated by the bulb is

A. 80 w
B. 1800 w
C. 112.5 w
D. 228 w

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In = ?

A. 1.5 a
B. 0.125
C. 0.25
D. 0.416666667

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