Semester : SEMESTER 6
Subject : Comprehensive Exam
Year : 2018
Term : APRIL
Scheme : 2015 Full Time
Course Code : EC 352
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a) Conductivity b) Wavelength c) Permeability d) Permittivity
8. For a dominant mode in a rectangular waveguide with breadth 10 cm, guide wavelength for a
signal of 2.5 GHz will be
೩) 12cm b) 15 cm c) 18cm d) 20 cm
9. The logic expression Y = A+ AB is equivalent to
a) Y = AB b) AB c)AB d) A+B
10. Minterms corresponding to decimal number 15 is
a) ABCD ہر b)ABCD c)A+B+C+D d)A+B+C+D
11.൧ கோர look ahead adder is frequently used for addition because it is
E
a) Faster ¢ more accurate c)use fewer 8೩೭೦೪ ५) costs less
12. The output ಛಿ; of a JK flipflop is zero. If it changes to 1 when a clock pulse is applied.
Then the input Jn and Ky are respectively
a) 0 and X b) land > c)Xand0 d) X and 1
13. How many flipflops are required to build a binary counter circuit from 0 to 1023?
a) 5 b)6 c) 10 d) 12
14. For a circuit shown in figure below what is the frequency of the output 0
a) Twice the input clock frequency. b) Half the input clock frequency.
b) Same as the input clock frequency. 9) None of these.
15. In a sequential circuit the output at any instant of time depends on
a) Only on the inputs present at that instant of time
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