Which of Ac following are true? Circle the dot true. When a loop antenna is used

Question

Which of Ac following are true? Circle the dot true. When a loop antenna is used with a receiver, the signal will be largest in the direction at right angles to the plane of the loop. Tiny antennas, compared to a wavelength, have small radiation resistances The cross product of E and 11 has units of ohms The cross product of E and 11 has units of watts Displacement current flows through the insulator in a capacitor (real charges are not flowing, however), if and only if the E field varies with time

Explanation / Answer

option 2 is correct.

i.e tiny anteenas compared to a wavelength ,have small radiation resistences. because

Radiation Resistance:

Radiation resistance is both the most useful and the least useful antenna-related term. Radiation resistance can easily be misused and rendered useless. This is because radiation resistance has multiple poorly-defined meanings. When a term has several nebulous meanings or uses, it is only natural that misuse or mixing of terms appear. Lack of a firm, single, well-accepted, definition allows the term "radiation resistance" to slip from one definition into another. This often results in well-intentioned, but totally erroneous conclusions, that seem to follow accurate, logical, thought!

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.