Physics · Oct / Nov 2021 · Paper 62 · Question 2
0625
As printed in the paper
The question as text
A student investigates the resistances of a resistor and a lamp. Fig. 2.1 shows the first circuit arrangement. A V R power supply Fig. 2.1
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
2(a)(i)[2]
VS = 1.8(0)
IS = 0.38
2(a)(ii)[2]
RS = 4.7 (4.7368)
units Ω, V, A seen
2(b)[2]
RL = 4.86 (Ω)
to 2 or 3 significant figures
2(c)[2]
symbols correct
resistor and lamp in series, with voltmeter in parallel with both
2(d)[1]
RC = 8.1 (8.0952) (Ω)
2(e)[2]
statement to match results – expect NO
explanation of idea of beyond limits of experimental accuracy (e.g., values not close (enough)/too far apart/> 10% difference
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.