Chapter 1: Charge, Current, PD, EMF, Resistance and Power

A-level PhysicsModule 4: Electrons, Waves & Photons8 topicsHigher

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Module 4: Electrons, Waves and Photons: Charge, Current, PD, EMF, Resistance and Power - Authored Long Answer Questions

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4 questions25 marks37.5 min

standard / hard

6 marksdescribestandardOCR A

For Charge, Current, PD, EMF, Resistance and Power, describe how charge flow, pd, emf and resistance applies to filament lamp connected to a variable dc supply.

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6 markscalculatehardOCR A

Using filament lamp connected to a variable dc supply, calculate a relevant OCR A Charge, Current, PD, EMF, Resistance and Power quantity and explain the physical or chemical meaning of the answer. Show equation, substitution, answer and unit.

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7 marksexplainhardOCR A

Charge, Current, PD, EMF, Resistance and Power - data from: filament lamp connected to a variable dc supply

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The graph for Charge, Current, PD, EMF, Resistance and Power shows data from filament lamp connected to a variable dc supply. Explain the pattern using the data and relevant physics principles.

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6 marksevaluatestandardOCR A

In filament lamp connected to a variable dc supply, evaluate the experimental method or model assumptions used when applying charge flow, pd, emf and resistance.

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Start of Module 4: Electrons, Waves & Photons

2. Kirchhoff's Laws, Potential Dividers and Sensing Circuits

Key learning objectives

Understand the key principles behind Charge, Current, PD, EMF, Resistance and Power.
Apply these ideas to exam-style questions.
Recall the essential definitions and key terms.