Electronics and Communication Engineering - Electronic Devices and Circuits

11.
In 8085 microprocessor, what is the memory word size?
6 bits
8 bits
12 bits
16 bits
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
Which of the following memory is preferred in case of calculators?
Dynamic RAM
Dynamic ROM
Static ROM
Static RAM
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
Which device changes parallel data to serial data?
Decoder
Multiplexer
Demultiplexer
Flip flop
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
A 12 bit ADC is employed to convert an analog voltage of zero to 10 volts. The resolution of the ADC is
2.44 mV
24.4 mV
83.3 mV
1.2 V
Answer: Option
Explanation:

Full scale measurement range = 0 to 10 volts.

ADC resolution is 12 bits: 2^12 = 4096 quantization levels.

ADC voltage resolution is: (10-0)/4096 = 0.00244 volts = 2.44 mV.


15.
Race condition always arises in
synchronous circuit
asynchronous circuit
combinational circuit
digital circuit
Answer: Option
Explanation:
No answer description is available. Let's discuss.