MCQOPTIONS
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MCQOPTIONS
This section includes 53 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
A 0.3-F capacitor has an initial charge of 2.7 V. If it is discharged through a 10-k resistor for 6.5 ms, how much voltage will be left across the capacitor? |
| A. | 0.0 V |
| B. | 0.309 V |
| C. | 2.7 V |
| D. | 2.295 V |
| Answer» C. 2.7 V | |
| 52. |
Pulse stretching, time-delay, and pulse generation are all easily accomplished with which type of multivibrator circuit? |
| A. | astable |
| B. | monostable |
| C. | multistable |
| D. | bistable |
| Answer» C. multistable | |
| 53. |
What is the function of the comparators in the 555 timer circuit? |
| A. | to compare the output voltages to the internal voltage divider |
| B. | to compare the input voltages to the internal voltage divider |
| C. | to compare the output voltages to the external voltage divider |
| D. | to compare the input voltages to the external voltage divider |
| Answer» C. to compare the output voltages to the external voltage divider | |