Decimal number 10 is equal to binary number 1110 1010 1001 1000 1010 = 8 + 2 = 1

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Question
Decimal number 10 is equal to binary number
Options
A. 1110
B. 1010
C. 1001
D. 1000

Correct Answer

1010

Explanation

1010 = 8 + 2 = 10 in decimal.

Digital Electronics problems

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1. Decimal 43 in hexadecimal and BCD number system is respectively.
Options
A. B2, 01000011
B. 2B, 01000011
C. 2B, 00110100
D. B2, 01000100

2. A counter type A/D converter contains a 4 bit binary ladder and a counter driven by a 2 MHz clock. Then conversion time
Options
A. 8 ? sec
B. 10 ? sec
C. 2 ? sec
D. 5 ? sec

3. The basic storage element in a digital system is
Options
A. flip flop
B. counter
C. multiplexer
D. encoder

4. Minimum number of 2-input NAND gates required to implement the function F = (x + y) (Z + W) is
Options
A. 3
B. 4
C. 5
D. 6

6. Which of the following is taken as reference antenna for directive gain?
Options
A. Half wave dipole
B. Elementary doublet
C. Isotropic
D. Infinitesimal dipole

8. An earth mat for a communication tower consists of
Options
A. one or two radials extending from base of tower at a depth of about 5 cm below ground
B. a large number of radials extending from base of tower at a depth of about 3 m
C. a large number of radials extending from base of tower at a depth of about 30 cm
D. none of the above

9. In CCIR-B system, the time between start of one H syn. pulse and next is
Options
A. 64 ?s
B. 6.4 ?s
C. 640 ?s
D. 0.64 ?s

10. A cordless telephone using separate frequencies for transmission in base and portable units is known as
Options
A. duplex arrangement
B. half duplex arrangement
C. either (a) or (b)
D. neither (a) nor (b)

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