Discussion
Home ‣ Digital Electronics ‣ Flip-Flops See What Others Are Saying!
- Question
A 555 timer is connected for astable operation as shown below along with the output waveform. It is determined that the duty cycle should be 0.5. What steps need to be taken to correct the duty cycle, while maintaining the same output frequency?
Options- A. Increase the value of C.
- B. Increase Vcc and decrease RL.
- C. Decrease R1 and R2.
- D. Decrease R1 and increase R2.
- Correct Answer
- Decrease R1 and increase R2.
- 1. Which is not a part of a GAL16V8's OLMC?
Options- A. TSMUX
- B. OMUX
- C. FMUX
- D. PSMUX Discuss
- 2. Output will be a LOW for any case when one or more inputs are zero for a(n):
Options- A. OR gate
- B. NOT gate
- C. AND gate
- D. NOR gate Discuss
- 3. The sum of 11101 + 10111 equals ________.
Options- A. 110011
- B. 100001
- C. 110100
- D. 100100 Discuss
- 4. Hex is often used in digital applications as a shorthand way to represent strings of bits.
Options- A. True
- B. False Discuss
- 5. Four cascaded modulus-10 counters have an overall modulus of ________.
Options- A. 10
- B. 100
- C. 1,000
- D. 10,000 Discuss
- 6. VHDL is not a new language.
Options- A. True
- B. False Discuss
- 7. Which is not a removable drive?
Options- A. Zip
- B. Jaz
- C. Hard
- D. SuperDisk Discuss
- 8. Which microprocessor has multiplexed data and address lines?
Options- A. 8086/8088
- B. 80286
- C. 80386
- D. Pentium Discuss
- 9. One of the stages in a register consists of a latch.
Options- A. True
- B. False Discuss
- 10. A VHDL component is a predefined logic function.
Options- A. True
- B. False Discuss
More questions
Correct Answer: PSMUX
Correct Answer: AND gate
Correct Answer: 110100
Correct Answer: True
Correct Answer: 10,000
Correct Answer: True
Correct Answer: Hard
Correct Answer: 8086/8088
Correct Answer: True
Correct Answer: False
Comments
There are no comments.More in Digital Electronics:
Boolean Algebra and Logic SimplificationCode Converters and MultiplexersCombinational Logic AnalysisCombinational Logic CircuitsComputersCountersDescribing Logic CircuitsDigital Arithmetic Operations and CircuitsDigital ConceptsDigital DesignDigital Signal ProcessingDigital System Projects Using HDLEx-OR and Ex-NOR GatesFlip-FlopsIntegrated-Circuit Logic FamiliesIntegrated Circuit TechnologiesInterfacing to the Analog WorldLogic Families and Their CharacteristicsLogic GatesMemory and StorageMicroprocessor FundamentalsMSI Logic CircuitsMultivibrators and 555 TimerNumber Systems and CodesProgrammable Logic DeviceShift RegistersSignals and SwitchesThe 8051 MicrocontrollerProgramming
Copyright ©CuriousTab. All rights reserved.