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Practise

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-MF1-0011 markL1 FoundationCalculatorF = BIL sin θ
A 0.0500.050 m length of wire carries 3.03.0 A at right angles to a field of 0.200.20 T. Calculate the force on it.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0041 markL1 FoundationCalculatorF = BIL sin θ
The force on a current-carrying wire in a magnetic field is zero when the wire is
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0051 markL1 FoundationCalculatorThe tesla
Magnetic flux density is defined as
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0061 markL1 FoundationCalculatorF = BIL sin θ
In Fleming's left-hand rule, the thumb represents
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0071 markL1 FoundationCalculatorThe tesla
The tesla is equivalent to
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0091 markL1 FoundationCalculatorF = BIL sin θ
The magnetic field lines around a long straight current-carrying wire are
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0101 markL1 FoundationCalculatorF = BIL sin θ
The current in a wire perpendicular to a field is doubled and the field is halved. State the factor by which the force changes.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0121 markL1 FoundationCalculatorThe tesla
Magnetic fields are produced by
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0022 marksL2 StandardCalculatorThe tesla
A wire with 4.04.0 cm in a magnetic field carries 2.52.5 A at right angles to it. A balance shows the force is equivalent to 1.21.2 g. Calculate BB. (g=9.81g=9.81 m s⁻²)

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0031 markL2 StandardCalculatorF = BIL sin θ
A wire 0.400.40 m long carrying 5.05.0 A makes an angle of 30°30° with a 0.150.15 T field. Calculate the force on it.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0081 markL2 StandardCalculatorF = BIL sin θ
A wire of length 0.250.25 m in a 0.500.50 T field at right angles experiences a force of 0.400.40 N. Calculate the current.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-MF1-0113 marksL3 ExamCalculatorF = BIL sin θ
A rectangular coil of 5050 turns, 4.04.0 cm by 3.03.0 cm, carries 0.200.20 A in a 0.300.30 T field. Its 4.04.0 cm sides are perpendicular to the field. Calculate the torque on the coil when its plane is parallel to the field, in mN m.

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Salam Academy Original Practice · Proposed mark scheme