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CAIE IGCSE Physics 4.2.2.4 Difference Between Direct Current Questions

Practise distinguishing d.c. from a.c. using current or voltage-time graphs, direction changes and labelled circuit supplies.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • Interpret current-time or voltage-time graphs as a.c. or d.c. supplies, describe d.c. as one direction and a.c. as a current that reverses direction, and sketch an a.c. current graph with the correct frequency, phase and peak value when given.

CAIE IGCSE Physics 4.2.2.4 Difference Between Direct Current Questions question 1

[Maximum number: 1]

Which graph of voltage against time shows an a.c. voltage?

A
Figure for Question CAIE IGCSE Physics 4.2.2.4 Difference Between Direct Current Questions question 1 — CAIE IGCSE Physics — Option A
B
Figure for Question CAIE IGCSE Physics 4.2.2.4 Difference Between Direct Current Questions question 1 — CAIE IGCSE Physics — Option B
C
Figure for Question CAIE IGCSE Physics 4.2.2.4 Difference Between Direct Current Questions question 1 — CAIE IGCSE Physics — Option C
D
Figure for Question CAIE IGCSE Physics 4.2.2.4 Difference Between Direct Current Questions question 1 — CAIE IGCSE Physics — Option D
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