A-LevelPhysicsAlternating currents9702/12 · Feb/Mar 2017 · Q41 Mark

A student is investigating an electrical signal using a cathode-ray oscilloscope (c.r.o). The frequency of the signal is 50 kHz. Which time-base setting on the oscilloscope should be used?

A50 ms cm⁻¹

B1 ms cm⁻¹

C10 µs cm⁻¹

D0.5 µs cm⁻¹

✓ Correct answer

C: 10 µs cm⁻¹

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Topic: Alternating currents, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Feb/Mar 2017 Paper 1 Variant 2, question 4.

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