This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Waveguides”. 1. The waveguide is employed in the transmission lines, when operated at the range of a) Hz b) KHz c) MHz d) GHz 2. The cut off frequency for a waveguide to operate is a) 3 MHz b) 3 … Read more
This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Types of Waveguides”. 1. The phenomenon employed in the waveguide operation is a) Reflection b) Refraction c) Total internal reflection d) Adsorption 2. The dominant mode in waveguide is the mode which has a) Highest frequency b) Highest wavelength c) Lowest phase … Read more
This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Short and Open Circuit Lines”. 1. The open circuit impedance of the transmission line is given by a) ZOC = j Zo tan βl b) ZOC = – j Zo tan βl c) ZOC = j Zo cot βl d) ZOC = … Read more
This set of Electromagnetic Theory Assessment Questions and Answers focuses on “Smith Chart”. 1. The Smith chart is a polar chart which plots a) R vs Z b) R vs Znorm c) T vs Z d) T vs Znorm 2. The Smith chart is graphical technique used in the scenario of transmission lines. State true/false. … Read more
This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Lossless and Distortionless Line”. 1. The transmission line is said to be lossless when the a) Conductor is perfect and dielectric is lossless b) Conductor is perfect and dielectric is lossy c) Conductor is imperfect and dielectric is lossy d) Conductor is … Read more
This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Types of Transmission Lines”. 1. Identify which of the following is not a transmission line? a) Telephone lines b) Power transmission c) Underground cables d) Cavity resonators 2. The open wire transmission line consists of a) Conductor b) Dielectric c) Both conductor … Read more
This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Skin Effect”. 1. The skin effect is a phenomenon observed in a) Insulators b) Dielectrics c) Conductors d) Semiconductors 2. The skin depth is measured in a) Meter b) Millimetre c) Centimetre d) Micrometer 3. The skin depth is calculated from the … Read more
This set of Electromagnetic Theory Questions and Answers for Aptitude test focuses on “Intrinsic Impedance and Propagation Constant”. 1. The intrinsic impedance of a wave with electric and magnetic field of 10 and 8 respectively is a) 1.6 b) 1.11 c) 1.25 d) 0.8 2. The intrinsic impedance is defined as the ratio of the … Read more
This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Power, Power Loss and Return Loss”. 1. The power of the electromagnetic wave with electric and magnetic field intensities given by 12 and 15 respectively is a) 180 b) 90 c) 45 d) 120 2. The power of a wave of with … Read more
This set of Electromagnetic Theory Questions and Answers for Campus interviews focuses on “Standing Waves and SWR”. 1. Standing waves occurs due to a) Impedance match b) Impedance mismatch c) Reflection d) Transmission 2. Standing wave ratio is defined as the a) Ratio of voltage maxima to voltage minima b) Ratio of current maxima to … Read more
