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Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-9702-EF2-0021 markL1 FoundationCalculatorPoint charge field
A sphere carries +2.0+2.0 nC. Calculate the field strength at 0.300.30 m from its centre. (14πε0=8.99×109\tfrac1{4\pi\varepsilon_0}=8.99\times10^9 N m² C⁻²)

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0031 markL1 FoundationCalculatorCoulomb's law
The distance between two point charges is halved. State the factor by which the force between them changes.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0041 markL1 FoundationCalculatorPoint charge field
The electric field strength inside a hollow charged conducting sphere is
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0061 markL1 FoundationCalculatorCoulomb's law
Outside a uniformly charged sphere, the sphere behaves as if
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0091 markL1 FoundationCalculatorPoint charge field
The electric field around an isolated negative point charge points
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0121 markL1 FoundationCalculatorCoulomb's law
Two like charges
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0012 marksL2 StandardCalculatorCoulomb's law
Calculate the electric force between a proton and an electron 5.3×10−115.3\times10^{-11} m apart, in units of 10−810^{-8} N. (14πε0=8.99×109\tfrac1{4\pi\varepsilon_0}=8.99\times10^9 N m² C⁻²)

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0052 marksL2 StandardCalculatorPoint charge field
Charges of +4.0+4.0 μC and +1.0+1.0 μC are 6.06.0 cm apart. Calculate the distance from the 4.04.0 μC charge to the neutral point between them, in cm.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0071 markL2 StandardCalculatorCoulomb's law
Compared with the gravitational force between two protons, the electric force is
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0082 marksL2 StandardCalculatorCoulomb's law
Two charges of +3.0+3.0 μC each are 0.100.10 m apart. Calculate the force between them. (14πε0=8.99×109\tfrac1{4\pi\varepsilon_0}=8.99\times10^9 N m² C⁻²)

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0101 markL2 StandardCalculatorPoint charge field
The field strength 0.200.20 m from a point charge is 900900 N C⁻¹. Calculate the field strength 0.600.60 m from it.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-EF2-0113 marksL3 ExamCalculatorPoint charge field
Charges of +2.0+2.0 nC and −2.0-2.0 nC are 0.200.20 m apart. Calculate the field strength at the midpoint between them. (14πε0=8.99×109\tfrac1{4\pi\varepsilon_0}=8.99\times10^9 N m² C⁻²)

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Salam Academy Original Practice · Proposed mark scheme