MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Power Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
THE_SOA_FOR_AN_IGBT_IS_PLOTTED_FOR?$ |
| A. | Ic versus Vge |
| B. | Ig versus Ic |
| C. | Ig versus Vce |
| D. | Ic versus Vce |
| Answer» E. | |
| 2. |
For_MOSFET’s_SOA,_as_the_pulse_width_goes_on_increasing,_the_maximum_voltage_rating______&_current_rating_____$# |
| A. | is constant, increases |
| B. | increases, decreases |
| C. | decreases, is constant |
| D. | constant, decreases |
| Answer» D. constant, decreases | |
| 3. |
The SOA for a MOSFET is plotted fo? |
| A. | Id versus Vds |
| B. | Ig versus Id |
| C. | Ig versus Vds |
| D. | Id versus Vgs |
| Answer» B. Ig versus Id | |
| 4. |
For a BJT, find the maximum power dissipation when the device is safely operated at Vce = 90V and Ic = 0.5A |
| A. | 40 Watts |
| B. | 35 Watts |
| C. | 45 Watts |
| D. | 30 Watts |
| Answer» D. 30 Watts | |
| 5. |
A device is operating at Ic = 4A & Vce = 50V. For the device to operate at Ic = 20A (Without damaging), |
| A. | voltage should be increased |
| B. | voltage should be reduced |
| C. | voltage can be kept constant |
| D. | current has to increased further |
| Answer» C. voltage can be kept constant | |
| 6. |
The SOAs provided by the manufacturers are for |
| A. | single pulse operation & a particular temperature |
| B. | multi pulse operation & all the temperature |
| C. | all the conditions |
| D. | a particular duty cycle operation |
| Answer» B. multi pulse operation & all the temperature | |
| 7. |
As the FSOA increases, the pulse width |
| A. | decreases |
| B. | increases |
| C. | remains constant |
| D. | vanishes |
| Answer» C. remains constant | |
| 8. |
The SOAs are plotted always on a _________ scale |
| A. | time |
| B. | frequency |
| C. | logarithmic |
| D. | polynomial |
| Answer» D. polynomial | |
| 9. |
The forward safe operating area (FSOA) pertains to the operation when |
| A. | the device is fired at a 50% Duty cycle |
| B. | the device is forward-biased |
| C. | the device is operated on AC |
| D. | the device is operated on DC |
| Answer» C. the device is operated on AC | |
| 10. |
For a transistor, the safe operating area (SOA) is a plot of |
| A. | Ib versus Vce |
| B. | Ib versus Ic |
| C. | Ic versus Vce |
| D. | Ic versus time |
| Answer» D. Ic versus time | |