# NPTEL Digital Circuits Week 1 Assignment Answers 2024

## NPTEL Digital Circuits Week 1 Assignment Answers 2024

1. What year was the bipolar transistor invented?

A) 1947
B) 1906
C) 1925
D) 1956

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2. 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.

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3. Which number system is primarily used by humans?

A) Binary
B) Decimal
C) Octal
D) Hexa-Decimal

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4. What is the binary representation of the decimal number 9?

A) (11001)2
B) (10011)2
C) (1001)2
D) (1101)2

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5. What is the binary representation of 468?

A) 1101102
B) 1000102
C) 1001102
D) 0101102

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6. What is the octal representation of 3510?

A) 328
B) 438
C) 408
D) 338

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7. What is the Hexadecimal representation of 1000 01012?

A) 8516
B) 858
C) 9616
D) 5116

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8. What is the octal representation of 3516?

A) 6516
B) 658
C) 568
D) 358

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9. What is the decimal equivalent of AA16?

A) 16010
B) 16510
C) 14710
D) 17010

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

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11. 8-bit 2’s complement form of (-15)10 is______________.

A) 0001 00012
B) 1111 00012
C) 1111 11112
D) 0000 11112

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12. What is the binary equivalent of 5.1510?

A) 101.00102
B) 101.10102
C) 111.00102
D) 101.11102

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13. What is the 1’s complement of (01001)2

A) (01010)2
B) (10110)2
C) (10010)2
D) (01011)2

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14. What is the decimal equivalent of 10.10012?

A) 2.5625
B) 2.6875
C) 1.6875
D) 2.0457

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15. What is the hexadecimal equivalent of 568?

A) 2F16
B) 2E16
C) 1Е16
D) 0E16

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