Electronics and Communication Engineering - Electronic Devices and Circuits
Exercise : Electronic Devices and Circuits - Section 2
- Electronic Devices and Circuits - Section 13
- Electronic Devices and Circuits - Section 24
- Electronic Devices and Circuits - Section 23
- Electronic Devices and Circuits - Section 22
- Electronic Devices and Circuits - Section 21
- Electronic Devices and Circuits - Section 20
- Electronic Devices and Circuits - Section 19
- Electronic Devices and Circuits - Section 18
- Electronic Devices and Circuits - Section 17
- Electronic Devices and Circuits - Section 16
- Electronic Devices and Circuits - Section 15
- Electronic Devices and Circuits - Section 14
- Electronic Devices and Circuits - Section 1
- Electronic Devices and Circuits - Section 12
- Electronic Devices and Circuits - Section 11
- Electronic Devices and Circuits - Section 10
- Electronic Devices and Circuits - Section 9
- Electronic Devices and Circuits - Section 8
- Electronic Devices and Circuits - Section 7
- Electronic Devices and Circuits - Section 6
- Electronic Devices and Circuits - Section 5
- Electronic Devices and Circuits - Section 4
- Electronic Devices and Circuits - Section 3
- Electronic Devices and Circuits - Section 2
6.
A 4 : 1 multiplexer requires __________ data select line.
Answer: Option
Explanation:
22 = 4. Hence 2 select lines.
7.
The number of unused states in a 4 bit Johnson counter is
Answer: Option
Explanation:
Total state = 2n = 24 = 16
Used state = 2n = 2 x 4 = 8
Unused state = 16 - 8 = 8.
8.
It is desired to display the digit 7 using a seven segment display. The LEDs to be turned on are
Answer: Option
Explanation:
9.
For a MOD-12 counter, the FF has a tpd = 60 ns The NAND gate has a tpd of 25 n sec. The clock frequency is
Answer: Option
Explanation:
For a proper working, the clock period should be equal to or greater than
tpd = Mod 12 - 4FFs = 4 x 60 = 240 nsec.
Total tpd = 240 + 25 = 265 nsec.
= fc
and fc = 3.774 MHz.
10.
1001012 is equal to decimal number
Answer: Option
Explanation:
32 + 4 + 1 = 37 in decimal.
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