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Question 20N.2.HL.TZ0.b(iii)

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Date November 2020 Marks available [Maximum mark: 2] Reference code 20N.2.HL.TZ0.b(iii)
Level HL Paper 2 Time zone TZ0
Command term Draw Question number b(iii) Adapted from N/A
b(iii).
[Maximum mark: 2]
20N.2.HL.TZ0.b(iii)

The diagram shows an alternating current generator with a rectangular coil rotating at a constant frequency in a uniform magnetic field.

The graph shows how the generator output voltage V varies with time t.

Electrical power produced by the generator is delivered to a consumer some distance away.

The frequency of the generator is doubled with no other changes being made. Draw, on the axes, the variation with time of the voltage output of the generator.

[2]

Markscheme

peak emf doubles ✓

T halves ✓


Must show at least 1 cycle.

Examiners report

Well answered, with the majority of candidates scoring at least 1 mark.

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