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517.

The simplified form of the Boolean expression Y = (A .BC + D) (A .D + B .C ) can be written as [2 marks]
(a) A.D + B.C.D
(b) AD + B.C.D
(c) (A + D) (B.C + D)
(d) A.D + BC.D

asked in Electrical Engineering, 2004

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518.

The input resistance R_IN = V_x/I_x of the circuit in figure is

[2 marks]
(a) +100kΩ
(b) -100kΩ
(c) +1 MΩ
(d) - 1 MΩ

asked in Electrical Engineering, 2004

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519.

In the active filter circuit shown in figure, if Q=1, a pair of poles will be realized with ω₀ equal to

[2 marks]
(a) 1000 rad/s
(b) 100 rad/s
(c) 10 rad/s
(d) 1 rad/s

asked in Electrical Engineering, 2004

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520.

The value of R for which the PMOS transistor in figure will be biased in linear region is

[2 marks]
(a) 220 Ω
(b) 470 Ω
(c) 680 Ω
(d) 1200 Ω

asked in Electrical Engineering, 2004

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521.

The transconductance g_m of the transistor shown in figure is 10 mS. The value of the input resistance R_IN is

[2 marks]
(a) 10.0 kW
(b) 8.3 kW
(c) 5.0 kW
(d) 2.5 kW

asked in Electrical Engineering, 2004

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522.

Assuming that he diodes are ideal in figure, the current in D₁ is

[2 marks]
(a) 8 mA
(b) 5 mA
(c) 0 mA
(d) -3 mA

asked in Electrical Engineering, 2004

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