Electronics and Communication Engineering - Digital Electronics - Discussion

Discussion Forum : Digital Electronics - Section 1 (Q.No. 9)
9.
BCD input 1000 is fed to a 7 segment display through a BCD to 7 segment decoder/driver. The segments which will lit up are
a, b, d
a, b, c
all
a, b, g, c, d
Answer: Option
Explanation:

1000 equals decimal 8 Therefore all segments will lit up.

Discussion:
14 comments Page 1 of 2.

Manisha. K said:   4 years ago
Explain it clearly.

Mansi said:   6 years ago
Can anyone explain it clearly?

Savan Tarpara said:   7 years ago
Decimal of binary 1000 is 8.

As we can know, there are total 8 LEDs in seven segment. (one for point).
So in number 8, all LEDs will glow up.

Akum Jamir said:   8 years ago
BCD input lines= 1000= 8 decimal.

Output lines= a=1 b=1 c=1 d=1 e=1 f=1 g=1.

SUMITH RAYABHARAPU said:   8 years ago
As seven segment display has 8 LED's[a,b,c,d,e,f,g and a decimal point dp].... and is driven by BCD.

So the i/p's of this BCD will have the following result on seven segment display,

0000-no o/p
0001-a
0010-a,b
0011-a,b,c
0100-a,b,c,d
.....
.....
....
1000-a,b,c,d,e,f,g & dp.
i.e., all LED's are lit up.
(3)

Seema said:   8 years ago
Please, Explain in detail.

S.MANJULADEVI said:   8 years ago
How do you say? @Prarthi.
(1)

Niki said:   9 years ago
The segment are fixed.

Prarthi said:   9 years ago
BCD has 1000 input, so an output of the decoder is 11111111.

Ruhi said:   10 years ago
g is not denoting 8 it is denoting 7.


Post your comments here:

Your comments will be displayed after verification.