Page 1105 - Basic Electrical Engineering
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e. 109;
f. 18.33;
g. 212.
8. Convert the following fractional decimal numbers into binary numbers:
a. 0.782;
b. 0.359;
c. 0.568;
d. 0.075;
9. Convert the following binary numbers into decimal numbers:
a. 1101;
b. 1111;
c. 1001;
d. 1100101;
10. Convert the following fractional binary numbers to fractional decimal numbers:
a. 0.1111;
b. 0.1001;
c. 0.0101;
11. Add the following binary numbers:
a. 1011+1110;
b. 101010+111011
12. Explain the difference between hexadecimal and octal systems.
13. Perform the following binary multiplication:
i. (111) × (1.2) ;
2
2
ii. (10101) × (1.1) ;
2
2
iii. (10100) × (0.1) .
2
2
14. State De Morgan’s theorem
15. Write down truth tables for the following gates:
a. NAND gate;
b. AND gate;
c. NOR gate.
16. Explain a logic OR gate using diodes. Also write the truth table.
17. What are universal gates? Explain with an example.
18. What ate flip-flops? Explain one of them.
19. Explain RS flip-flop. What is D flip-flop?
