Physics · Oct / Nov 2019 · Paper 22 · Question 6
5054
As printed in the paper
The question as text
An electric circuit contains a 700 Ω resistor and a light-dependent resistor (LDR). Fig. 6.1 is the circuit diagram. oscilloscope LDR S 12 V 700 Ω Fig. 6.1 The electromotive force (e.m.f.) of the battery is 12 V. An oscilloscope is connected across the fixed resistor. Fig. 6.2 shows the oscilloscope, including the settings of the timebase and the Y-gain controls. Line Q shows the position of the trace on the oscilloscope when the switch S is open. timebase Y-gain 50 ms / division 2.0 V / division 1 division P Q Fig. 6.2 9 The switch S is closed and the trace on the oscilloscope moves to the position shown by line P in Fig. 6.2.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
6(a)(i)[1]
6(a)(ii)[3]
6(b)[3]
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.