MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the IC 7805, what is the minimum input voltage for proper functioning? |
| A. | 5V |
| B. | 6V |
| C. | 7V |
| D. | 8V |
| Answer» D. 8V | |
| 2. |
What is the output of the IC 7924? |
| A. | 12V |
| B. | -12V |
| C. | 24V |
| D. | -24V |
| Answer» E. | |
| 3. |
In a transistorized series regulator, how is the overload and short-circuit protection provided? |
| A. | By the use of a thermistor |
| B. | By using two additional diodes and a current sensing resistor to protect the series transistor |
| C. | By using a diode and an additional resistor to protect the transistor |
| D. | By using a diode along with a capacitor of a small capacitance value in series |
| Answer» C. By using a diode and an additional resistor to protect the transistor | |
| 4. |
What is not related to a transistorized series regulator? |
| A. | The output can be varied by using a variable resistor |
| B. | The output is independent of temperature |
| C. | The overload and short circuit protection is not required |
| D. | The circuit has negative feedback responsible for regulation |
| Answer» D. The circuit has negative feedback responsible for regulation | |
| 5. |
In a power supply, the output voltage can vary due to multiple reasons. Which of these is not true if it is found that the output voltage is constant? |
| A. | The voltage stability factor is very high |
| B. | The output resistance is zero |
| C. | The temperature coefficient is zero |
| D. | The voltage stability factor is very small |
| Answer» B. The output resistance is zero | |