Electronics and Communication Engineering - Exam Questions Papers
Exercise :: Exam Questions Papers - Exam Paper 16
| 11. |
Which of the following is not an electromagnetic device? |
| A. |
Hall transducer | | B. |
Transformer | | C. |
Speedometer | | D. |
Eddy current damping device |
Answer: Option A
Explanation:
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| 12. |
In which direction is the plane wave E = 50 sin (108t + 2z) V/m (where is the unit vector in y-direction), travelling? |
| A. |
along y direction | | B. |
along -y direction | | C. |
along z direction | | D. |
along -z direction |
Answer: Option D
Explanation:
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| 13. |
Which one of the following compounds is widely used for making ferrites? |
Answer: Option D
Explanation:
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| 14. |
Assertion (A): Cut-in voltage for Germanium diode is greater than that for silicon diode. Reason (R): Germanium diode has a higher reverse saturation current than silicon diode. |
| A. |
Both A and R are individually true and R is the correct explanation of A | | B. |
Both A and R are individually true but R is not the correct explanation of A | | C. |
A is true but R is false | | D. |
A is false but R is true |
Answer: Option D
Explanation:
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| 15. |
Laplace transform of unit triplet function is __________ . |
Answer: Option C
Explanation:
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