MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Transformers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For transformer given, turns ratio is equal to a, what will be the impedance of primary with respect to secondary? |
| A. | a<sup>2</sup> times the secondary impedance |
| B. | a times secondary impedance |
| C. | secondary impedance/a |
| D. | secondary impedance/a<sup>2</sup> |
| Answer» E. | |
| 2. |
Which of the following is the wrong expression? |
| A. | i<sub>1</sub>N<sub>1</sub>=i<sub>2</sub>N<sub>2</sub> |
| B. | i<sub>1</sub>v<sub>1</sub>=i<sub>2</sub>v<sub>2</sub> |
| C. | i<sub>1</sub>N2=i<sub>2</sub>N<sub>1</sub> |
| D. | v<sub>2</sub>N<sub>1</sub>=v<sub>1</sub>N<sub>2</sub> |
| Answer» D. v<sub>2</sub>N<sub>1</sub>=v<sub>1</sub>N<sub>2</sub> | |
| 3. |
Which of the following is the expression for emf induced in primary with voltage applied to primary of an ideal transformer? |
| A. | e=V |
| B. | V= 2*e*cos t |
| C. | e= 2*V*cos t |
| D. | Cannot say |
| Answer» D. Cannot say | |
| 4. |
8.Turns ratio of the transformer is directly proportional to ____________ |
| A. | Resistance ratio |
| B. | Currents ratio |
| C. | Voltage ratio |
| D. | Not proportional to any terms |
| Answer» D. Not proportional to any terms | |