11A standing wave ratio (VSWR) of 1 indicates:ATotal reflectionBAn open circuitCA short circuitDA perfectly matched lineView AnswerDiscussWorkspaceReportSaveEasy
12A waveguide cannot propagate signals below its:APower frequencyBSampling frequencyCResonant frequencyDCut-off frequencyView AnswerDiscussWorkspaceReportSaveEasy
13Maxwell's equations unify:AGravity and magnetismBHeat and lightCSound and electricityDElectricity and magnetismView AnswerDiscussWorkspaceReportSaveEasy
14Skin effect causes AC current to flow mainly:AOnly in insulatorsBUniformlyCNear the surface of a conductorDAt the centreView AnswerDiscussWorkspaceReportSaveEasy
15In a TEM wave, the electric and magnetic fields are:AParallel to each otherBZeroCPerpendicular to each other and to the direction of propagationDParallel to propagationView AnswerDiscussWorkspaceReportSaveEasy