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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 18
26.
A 4 bit shift register is initialized to value 1000 for (Q3, Q2, Q1, Q0). The D input is derived from Q0, Q2 and Q3 through two XOR gates as shown in figure. The pattern 1000 will appear at
3rd pulse
7th pulse
6th pulse
4th pulse
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.

Assertion (A): Capacitance of a solid conducting spherical body of radius 'a' is given by 4 pε0a in free space.

Reason (R): Δ x H = jωεE + J.

Both A and R are individually true and R is the correct explanation of A
Both A and R are individually true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Choose the correct statement/statements :
In case of an antenna, the antenna resistance and loss resistance are not two different quantities.
The loss resistance includes loss by eddy currents, improper earth connections, insulation leakages, etc., but not I2R losses.
Radiation resistance varies directly as square-root of frequency
None
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The PCM signal shown below uses amplitude level of +1 volt and -1 volt to represent binary symbol 0 and 1 respectively. Each code word consists of 4 bits. The sampled version of analog signal from which this PCM signal is derived is
EB596
CD231
DA495
25B6A
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Consider a situation where number of minterms with even number of 0's are same as number of minterms with odd number of 1's. Then minterms with even number of 0's and minterms with odd number of 1's are __________ to each other then number of variables is __________ .
equivalent, even
complement, odd
complement, even
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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