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the dominant mode in a rectangular waveguide is
Question:
The dominant mode in a rectangular waveguide is
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Dominant mode in rectangular waveguide is always TE\(_{10}\).
AP ECET ECE - 2025
AP ECET ECE
Updated On:
Jul 2, 2026
TM\(_{11}\)
TE\(_{10}\)
TM\(_{01}\)
TE\(_{01}\)
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The Correct Option is
B
Solution and Explanation
Concept:
Waveguides support different modes of propagation.
Step 1: Mode types
TE (Transverse Electric) and TM (Transverse Magnetic).
Step 2: Dominant mode definition
Mode with lowest cutoff frequency.
Step 3: Rectangular waveguide
Lowest cutoff frequency corresponds to TE\(_{10}\).
Step 4: Reason
TE\(_{10}\) has simplest field distribution.
Step 5: Conclusion
\[ \boxed{TE_{10}} \]
Final Answer:
\[ \boxed{(B)} \]
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