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Electronics and Communication Electronic Devices And Circuits Difficulty: Medium

In single - mode fibers, how does the fraction of energy travelling through bound mode appears in the cladding? For a WR 90 waveguide, the cut-off frequency for TE 20 mode is 16 GHz. Then the cut-off frequency for TE 11 mode will be The wave in wave guide has A series LCR circuit consisting of R = 10 Ω, |X L | = 20 Ω and |X C | = 20 Ω is connected across an a.c. supply of 200 V rms. The rms voltage across the capacitor is Inside a 741 op-amp the last functional block is a