1Lenz's law gives the:AMagnitude of the forceBDirection of the induced current, opposing the change that caused itCResistance of a wireDSpeed of lightView AnswerDiscussWorkspaceReportSaveEasy
2In a TEM wave, the electric and magnetic fields are:AParallel to each otherBParallel to propagationCPerpendicular to each other and to the direction of propagationDZeroView AnswerDiscussWorkspaceReportSaveEasy
3A quarter-wave transformer is used for:ARectificationBImpedance matchingCVoltage regulationDAmplificationView AnswerDiscussWorkspaceReportSaveEasy
4The characteristic impedance of free space is about:A50 ΩB75 ΩC377 ΩD1 ΩView AnswerDiscussWorkspaceReportSaveEasy
5A standing wave ratio (VSWR) of 1 indicates:AA perfectly matched lineBTotal reflectionCAn open circuitDA short circuitView AnswerDiscussWorkspaceReportSaveEasy