MCQOPTIONS
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MCQOPTIONS
This section includes 159 Mcqs, each offering curated multiple-choice questions to sharpen your BITSAT knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Find the current through the diode in the given circuit. |
| A. | 1 A |
| B. | 2 A |
| C. | 4 A |
| D. | 3 A |
| Answer» C. 4 A | |
| 152. |
In Varactor Diode, if reverse voltage will increase space charge width: |
| A. | decrease |
| B. | remains the same |
| C. | increase |
| D. | decrease rapidly |
| Answer» D. decrease rapidly | |
| 153. |
A square wave of ± 20 V is given to the clamper circuit given below. What are the minimum and maximum value of the output voltage (Vout)? Assume ideal diode. |
| A. | -10 V, 0 V |
| B. | -20 V, +20 V |
| C. | -30 V, +10 V |
| D. | -10 V, +30 V |
| Answer» E. | |
| 154. |
For Clamp circuit one must _____ |
| A. | add DC signal with DC |
| B. | add AC signal with DC |
| C. | add AC signal with AC |
| D. | subtract AC from DC |
| Answer» C. add AC signal with AC | |
| 155. |
In the circuit given below, what is Vout? |
| A. | Vm |
| B. | 2 Vm |
| C. | 3 Vm |
| D. | 4 Vm |
| Answer» E. | |
| 156. |
A filtered full-wave rectifier voltage has a smaller ripple than does a half-voltage for the same load resistance and capacitor values because: |
| A. | there is a shorter time between peaks |
| B. | there is a longer time between peaks |
| C. | the larger the ripple, the batter the filtering action |
| D. | none of the above |
| Answer» B. there is a longer time between peaks | |
| 157. |
If the PIV rating of a diode is exceeded, __________. |
| A. | The diode conducts poorly |
| B. | The diode behaves like a tunnel diode |
| C. | The diode is destroyed |
| D. | The diode behaves like a capacitor |
| Answer» D. The diode behaves like a capacitor | |
| 158. |
In the circuit shown below, the ideality factor η of the diode is unity and the voltage drop across it is 0.7 V. The dynamic resistance of the diode at room temperature is approximately. |
| A. | 15 Ω |
| B. | 25 Ω |
| C. | 50 Ω |
| D. | 700 Ω |
| Answer» C. 50 Ω | |
| 159. |
Circuit used to shift the DC level of the input signal is: |
| A. | Clamper |
| B. | Rectifier |
| C. | Amplifier |
| D. | Clipper |
| Answer» B. Rectifier | |