Indian Institute of Technology Mumbai (IIT-M) 2009 Other Bachelor

units
(A) one V- (B) one em× V- (C) one V × cm- (D) V . s
16. In a microprocessor, the service routine for a certain interrupt begins from a fixed
location of memory which cannot be externally set, but the interrupt can be
delayed or rejected. Such an interrupt is
(A) non-maskable and non-vectored (B) maskable and non-vectored
(C) non-maskable and vectored (D) maskable and vectored


+-
60V
12A
+ - 20V
R (t)
t
R (t)
t
R (t)
t
R (t)
t
EC½ GATE Paper 2009 www.gateforum.com
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17. If the transfer function of the subsequent network is
( )
( )
0
i
V s 1
V s two s CR
=
+
The value of the load resistance RL is
(A) R/4 (B) R/2 (C) R (D) 2R
18. Consider the system
dx Ax Bu with A one 0 and B p
dt 0 one q
= + =  = 
 

 

where p and q are
arbitrary real numbers. Which of the subsequent statements about the
controllability of the system is true?
(A) The system is completely state controllable for any nonzero values of p and q
(B) Only p=0 and q=0 outcome in controllability
(C) The system is uncontrollable for all values of p and q
(D) We cannot conclude about controllability from the provided data
19. For a message signal ( ) ( ) m m t = cos 2pf t and carrier of frequency fc, which of the
subsequent represents a single side band (SSB) signal?
(A) ( ) ( ) m c cos 2pf t cos 2pf t (B) ( ) c cos 2pf t
(C) ( ) c m cos 2p f + f t
(D) ( ) ( ) m c 1 + cos 2pf t
cos 2pf t
20. 2 infinitely long wires carrying current are as shown in the figure beneath. One
wire is in the y-z plane and parallel to the y-axis. The other wise is in the x-y
plane and parallel to the x-axis. Which components of the resulting magnetic field
are non-zero at the origin?
(A) x, y, z components (B) x, y components
(C) y, z components (D) x, z components
R
C
i V
+

Earning:   Approval pending.