Decimal -90 equals __________ in 8 bit 2s complement
Answer: B
+90 in binary is 01011010. Its 2's complement is 10100110.
Enter details here
What will be minimum conversion rate in 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).
Answer: B
No Explanation.
Enter details here
The number of unused states in a 4 bit Johnson counter is
Answer: C
No Explanation.
Enter details here
In a 3 input NOR gate, the number of states in which output is 1 equals
Answer: A
Only one input, i.e., A = 0, B = 0 and C = 0 gives 1 as output.
Enter details here
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: A
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.
Enter details here
Using 2's complement, the largest positive and negative number which can be stored with 8 bits are
Answer: C
Largest positive number is 0111 111 = + 127 and largest negative number is 1000 0000 = -128.
Enter details here
A ring counter with 5 flip flops will have
Answer: A
No answer description available for this question.
Enter details here
A current tracer responds to
Answer: B
The indicator of current tracer glows when its tip is held over a pulsating current path.
Enter details here
4 bit 2's complement representation of a decimal number is 1000. The number is
Answer: C
(a) and (d) both are option, But there is meaning to represent a positive number in 2's complement form, we take complement representation for negative number only. Therefore most appropriate number is "-8".
Enter details here
To count 1000 bottles in a milk plant, the minimum number of flip flops requires is
Answer: B
No Explanation.
Enter details here