One Stop GATE Forum: 2001- year ECE GATE Paper

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1)MOSFET can be used as a 
 (a)  current controlled capacitor  (b)  voltage controlled capacitor 
 (c)  current controlled inductor  (d)  voltage controlled inductor 

2)  The effective channel length of a MOSFET in saturation decreases with increase in 
 (a)  gate voltage      (b)  drain voltage 
 (c)  source voltage      (d)  body voltage 

3)The 2‘s complement representation of œ17 is 
 (a)  01110  (b)  01111  (c)  11110  (d) 10001 

4)  Consider the following two statements: 
 Statement 1: A stable multi-vibrator can be used for generating square wave. 
 Statement 2: B stable multi-vibrator can be used for storing binary information. 
 (a)  Only statement 1 is correct 
 (b)  Only statement 2 is correct 
 (c)  Both the statements 1 and 2 are correct 
 (d)  Both the statements 1 and 2 are incorrect 

5).  An  8085  microprocessor  based  system  uses  a  4K  ×  8-bit  RAM  whose  starting 
    address is AA00. The address of the last byte in this RAM is 
  (a)  0FFFH  (b)  1000 H  (c)  B9FF H  (d) BA00 H 

6).  A band limited signal is sampled at the Nyquist rate. The signal can be recovered 
by passing the samples through 
  (a)  an RC filter      (b)  an envelope detector 
 (c)  a PLL 
 (d)  an ideal low-pass filter with appropriate bandwidth 

7) .  If a signal f(t) has energy E, the energy of the signal f(2t) is equal to 
     a)  E  (b)   3E   (c)  2E  (d) 4E 

8) .  A transmission line is distortion-less if   
  (a)1   (b)  RL = GC  (c)  LG = RC  (d) RG = LC 

Author	Message
Priya Groupie Joined: 04Jan2007 Online Status: Offline Posts: 82	Topic: 2001- year ECE GATE Paper Posted: 14Feb2007 at 4:45pm
	1)MOSFET can be used as a (a) current controlled capacitor (b) voltage controlled capacitor (c) current controlled inductor (d) voltage controlled inductor 2) The effective channel length of a MOSFET in saturation decreases with increase in (a) gate voltage (b) drain voltage (c) source voltage (d) body voltage 3)The 2‘s complement representation of œ17 is (a) 01110 (b) 01111 (c) 11110 (d) 10001 4) Consider the following two statements: Statement 1: A stable multi-vibrator can be used for generating square wave. Statement 2: B stable multi-vibrator can be used for storing binary information. (a) Only statement 1 is correct (b) Only statement 2 is correct (c) Both the statements 1 and 2 are correct (d) Both the statements 1 and 2 are incorrect 5). An 8085 microprocessor based system uses a 4K × 8-bit RAM whose starting address is AA00. The address of the last byte in this RAM is (a) 0FFFH (b) 1000 H (c) B9FF H (d) BA00 H 6). A band limited signal is sampled at the Nyquist rate. The signal can be recovered by passing the samples through (a) an RC filter (b) an envelope detector (c) a PLL (d) an ideal low-pass filter with appropriate bandwidth 7) . If a signal f(t) has energy E, the energy of the signal f(2t) is equal to a) E (b) 3E (c) 2E (d) 4E 8) . A transmission line is distortion-less if (a)1 (b) RL = GC (c) LG = RC (d) RG = LC
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