Page 10 16. The output from an a.c. power supply is connected to an oscilloscope. The trace seen on the oscilloscope screen is shown. div div The Y-gain setting on the oscilloscope is 1Ā·0āV/div. The r.m.s. voltage of the power supply is A 2Ā·1āV B 3Ā·0āV C 4Ā·0āV D 4Ā·2āV E 6Ā·0āV. 17. A 20āĀµF capacitor is connected to a 12āVād.c. supply. The maximum charge stored on the capacitor is A 1Ā·4 Ć 10ā3āC B 2Ā·4 Ć 10ā4āC C 1Ā·4 Ć 10ā4āC D 1Ā·7 Ć 10ā6āC E 6Ā·0 Ć 10ā7āC.
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Exam Specification Info
This question is part of the UK A-Level Physics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
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