Skip to content

Course home

Sign up

4.2 Electrical quantities

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102
Question 45

A piece of wire is 60 cm long and has a diameter of 3.0 mm.

Its resistance is 0.80 Ω.

Which wire of the same material has a resistance of 1.60 Ω?

A

Length: 30 cm30\text{ cm}30 cm, diameter: 6.0 mm6.0\text{ mm}6.0 mm

B

Length: 120 cm120\text{ cm}120 cm, diameter: 1.5 mm1.5\text{ mm}1.5 mm

C

Length: 30 cm30\text{ cm}30 cm, diameter: 1.5 mm1.5\text{ mm}1.5 mm

D

Length: 120 cm120\text{ cm}120 cm, diameter: 6.0 mm6.0\text{ mm}6.0 mm

Markscheme

4.2 Electrical quantities Questions

  1. IGCSE
  2. /Physics
  3. /4.2 Electrical quantities

452 exam-style questions on CIE IGCSE Physics 4.2 Electrical quantities, covering 4.2.1a Positive and negative charge, 4.2.1b Charging by friction and detecting charge, 4.2.1c Electrical conductors and insulators, 4.2.1d Electric fields and electric field patterns, 4.2.2a Electric current, charge and measuring current, 4.2.2b Conduction in metals and the direction of current, 4.2.2c Direct current and alternating current, 4.2.3a Electromotive force, 4.2.3b Potential difference and voltmeters, 4.2.4a Resistance, 4.2.4b Resistance of a metallic wire, 4.2.4c Current–voltage graphs, and 4.2.5 Electrical energy and electrical power. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank