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Magnetic fields (A-level only)

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Question 20

The figure shows an oscilloscope trace of a sinusoidal alternating voltage.

Oscilloscope Trace

The time base setting is 0.20 ms cm-1 and the Y-voltage gain is 2.5 V cm-1.

Which row in the table correctly describes the alternating voltage?

RMS voltage: 5.3 V5.3\text{ V}5.3 V, Frequency: 1000 Hz1000\text{ Hz}1000 Hz

RMS voltage: 5.3 V5.3\text{ V}5.3 V, Frequency: 2000 Hz2000\text{ Hz}2000 Hz

RMS voltage: 10.6 V10.6\text{ V}10.6 V, Frequency: 1000 Hz1000\text{ Hz}1000 Hz

RMS voltage: 10.6 V10.6\text{ V}10.6 V, Frequency: 2000 Hz2000\text{ Hz}2000 Hz

Magnetic fields (A-level only) Questions

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