# Digital Circuits | Week 1

Session: JULY – DEC 2024

Course name: Digital Circuits

#### These are Digital Circuits Week 1 Assignment 1 Nptel Answers

Q1. What year was the bipolar transistor invented?
A) 1947
B) 1906
C) 1925
D) 1956

Q2. Which of the following statement is TRUE?
A) Moore’s law states that the number of transistors on a chip doubles annually.
B) Moore’s law states that the number of transistors on a chip doubles approximately every 1-2 months.
C) Rock’s law states that the number of transistors on a chip doubles annually.
D) Machrone’s law states that the cost of the semiconductor tools doubles every four years.

Answer: A) Moore’s law states that the number of transistors on a chip doubles annually.

These are Digital Circuits Week 1 Assignment 1 Nptel Answers

Q3. Which number system is primarily used by humans?
A) Binary
B) Decimal
C) Octal
D) Hexa-Decimal

Q4. What is the binary representation of the decimal number 9?
A) (11001)2
B) (10011)2
C) (1001)2
D) (1101)2

These are Digital Circuits Week 1 Assignment 1 Nptel Answers

Q5. What is the binary representation of 468?
A) 1101102
B) 1000102
C) 1001102
D) 0101102

Q6. What is the octal representation of 3510?
A) 328
B) 438
C) 408
D) 338

These are Digital Circuits Week 1 Assignment 1 Nptel Answers

Q7. What is the Hexadecimal representation of 1000 01012?
A) 8516
B) 858
C) 9616
D) 5116

Q8. What is the octal representation of 3516?
A) 6516
B) 658
C) 568
D) 358

These are Digital Circuits Week 1 Assignment 1 Nptel Answers

Q9. What is the decimal equivalent of AA16?
A) 16010
B) 16510
C) 14710
D) 17010

Q10. What is the decimal equivalent of 148?
A) 1210
B) 1410
C) 1010
D) 810

These are Digital Circuits Week 1 Assignment 1 Nptel Answers

Q11. 8-bit 2’s complement form of (-15)10 is
A) 0001 00012
B) 1111 00012
C) 1111 11112
D) 0000 11112

Q12. What is the binary equivalent of 5.1510?
A) 101.00102
B) 101.10102
C) 111.00102
D) 101.11102

These are Digital Circuits Week 1 Assignment 1 Nptel Answers

Q13. What is the 1’s complement of (01001)2
A) (01010)2
B) (10110)2
C) (10010)2
D) (01011)2

Q14. What is the decimal equivalent of 10.10012?
A) 2.5625
B) 2.6875
C) 1.6875
D) 2.0457

These are Digital Circuits Week 1 Assignment 1 Nptel Answers

Q15. What is the hexadecimal equivalent of 568?
A) 2F16
B) 2E16
C) 1E16
D) 0E16