Skip to content

Course home

Sign up

4.2.2a Electric current, charge and measuring current

EasyMedium
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748
Question 31

The descriptions below refer to the electric currents in three different circuits:

  • Circuit X has a steady current of 0.45 A in one direction.
  • Circuit Y has a current that varies sinusoidally between +0.45 A and -0.45 A.
  • Circuit Z has a current that fluctuates between 0.15 A and 0.35 A but always flows in the same direction.

Which of these circuits contain a direct current (d.c.)?

A

X only

B

X and Z only

C

Y and Z only

D

Z only

Markscheme

4.2.2a Electric current, charge and measuring current Questions

  1. IGCSE
  2. /Physics
  3. /4.2.2a Electric current, charge and measuring current

51 exam-style questions on CIE IGCSE Physics 4.2.2a Electric current, charge and measuring current. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank