MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Electronic Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In a klystron amplifier dc electron velocity is v 0 and dc electron charge density is r 0 the dc beam current is |
| A. | r 0 v 0 |
| B. | r 0 / v 0 |
| C. | v 0 / r 0 |
| D. | ( v 0 / r 0 ) 2 |
| Answer» B. r 0 / v 0 | |
| 2. |
In a turnstile antenna two-half wave resonant wire radiators are placed at 90° to each other in the same plane and are excited |
| A. | in phase |
| B. | in phase opposition |
| C. | 90° out of phase with each other |
| D. | 45° out of phase with each other |
| Answer» D. 45° out of phase with each other | |
| 3. |
A line has a phase constant of 29.8 rad/ m . At 1000 MHz the wavelength is |
| A. | 29.8 m |
| B. | 2.98 m |
| C. | 2.1 m |
| D. | 0.21 m |
| Answer» E. | |
| 4. |
A loss less line of characteristic impedance Z 0 is terminated in pure reactance of - j Z 0 value. VSWR is |
| A. | 10 |
| B. | 2 |
| C. | 1 |
| D. | infinity |
| Answer» E. | |