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1. Conducting medium behaves like an open circuit to the electromagnetic field.
3. At radio and microwave frequencies the relaxation tOne is much less than the period.
3. In loss-less dielectric the relaxation time is infinite.
4. Intrinsic impedance of a perfect dielectric medium is a pure resistance.
Which of the above statements is correct?, Options are ⇒ (A) 1 only., (B) 1 and 2 only., (C) 2 and 3 only, (D) 2, 3 and 4., (E) , Leave your comments or Download question paper.
Consider the following statements connection with electromagnetic
waves: 1. Conducting medium behaves like an open circuit to the electromagnetic field. 3. At radio and microwave frequencies the relaxation tOne is much less than the period. 3. In loss-less dielectric the relaxation time is infinite. 4. Intrinsic impedance of a perfect dielectric medium is a pure resistance. Which of the above statements is correct? | |
A. | 1 only. [Wrong Answer] |
B. | 1 and 2 only. [Wrong Answer] |
C. | 2 and 3 only [Wrong Answer] |
D. | 2, 3 and 4. [Correct Answer] |