Skip to content

Course home

4.2.4a Resistance

Easy Medium Hard

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

Question 47

A cylinder of conducting putty has length $l$ , diameter $d$ , and resistance $R$ . The putty is now moulded into a longer, thinner cylinder of diameter $13d\displaystyle \frac{1}{3}d$ that has the same volume.

By which factor does the resistance of the putty cylinder increase?

A

9

B

27

C

54

D

81

Markscheme

4.2.4a Resistance Questions

IGCSE
Physics
4.2.4a Resistance

132 exam-style questions on CIE IGCSE Physics 4.2.4a Resistance. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank