6A 100 W bulb used for 10 hours consumes:A1 kWhB100 kWhC10 kWhD0.1 kWhView AnswerDiscussWorkspaceReportSaveEasy
7If the length of a wire is doubled and its area is halved, its resistance becomes:AUnchangedBFour timesCDoubleDHalfView AnswerDiscussWorkspaceReportSaveEasy
8Ohm's law relates voltage, current and resistance as:AV = I / RBV = IRCV = R / IDV = I²RView AnswerDiscussWorkspaceReportSaveEasy
9The resistance of a conductor increases with:ADecreasing temperature for metalsBCross-sectional areaCConductivityDLengthView AnswerDiscussWorkspaceReportSaveEasy
10The resistance of a wire is proportional to its:ALengthBDiameterCCross-sectional areaDWeight onlyView AnswerDiscussWorkspaceReportSaveEasy