AQA A LEVEL BUSINESS PAPER 3 TEST BANK
2026 QUESTIONS WITH SOLUTIONS GRADED
A+
◉ Motor effect. Answer: Effect in which a current in a magnetic field
experiences a force.
◉ Fleming's left hand rule. Answer: Way of working out the directions
involved in the motor effect.
◉ Magnetic flux density. Answer: Force per unit length per unit current
on a conductor perpendicular to the field lines. Often referred to as the
strength of the magnetic field.
◉ Couple. Answer: Pair of forces in opposite directions that try to turn
an object. Acts on the coil of a motor.
◉ Thermionic. Answer: Property of a material that means that when it
gets hot, it emits electrons.
◉ Cyclotron. Answer: Spiral particle accelerator.
,◉ Frequency. Answer: Number of rotations per second, given by 1/T.
◉ Mass spectrometer. Answer: Device that separates a constituents of a
substance by their masses.
◉ Ion. Answer: Charged atom.
◉ Velocity selector. Answer: Component that uses an opposing electric
and magnetic field to ensure all particles going straight through have the
same speed and direction.
◉ Vacuum. Answer: Space where (nearly) all particles have been
removed (evacuated).
◉ Electromotive force. Answer: Force on electrons that tries to push
them along. Known as the emf.
◉ Electromagnetic induction. Answer: Phenomenon in which a
changing magnetic field, relative to a wire, will produce an emf.
◉ Fleming's right hand rule. Answer: Also known as the dynamo rule.
Works out directions involved in electromagnetic induction.
◉ Solenoid. Answer: Electrical coil.
, ◉ Lenz's law. Answer: "The direction of the induced current is always
such as to oppose the change that caused the current".
◉ Magnetic flux. Answer: Product of the magnetic flux density and the
area.
◉ Magnetic flux linkage. Answer: Product of the magnetic flux and the
number of turns of the coil.
◉ Faraday's law. Answer: "The induced emf in a circuit is equal to the
rate of change of flux linkage through the circuit".
◉ Alternator. Answer: Generator of AC.
◉ Back emf. Answer: An emf generated in a motor that works against
the current that is powering the motor.
◉ Step-up. Answer: Transformer that raises the voltage and lowers the
current (answer is hyphenated!)
◉ Step-down. Answer: Transformer that lowers the voltage and raises
the current (answer is hyphenated!)
2026 QUESTIONS WITH SOLUTIONS GRADED
A+
◉ Motor effect. Answer: Effect in which a current in a magnetic field
experiences a force.
◉ Fleming's left hand rule. Answer: Way of working out the directions
involved in the motor effect.
◉ Magnetic flux density. Answer: Force per unit length per unit current
on a conductor perpendicular to the field lines. Often referred to as the
strength of the magnetic field.
◉ Couple. Answer: Pair of forces in opposite directions that try to turn
an object. Acts on the coil of a motor.
◉ Thermionic. Answer: Property of a material that means that when it
gets hot, it emits electrons.
◉ Cyclotron. Answer: Spiral particle accelerator.
,◉ Frequency. Answer: Number of rotations per second, given by 1/T.
◉ Mass spectrometer. Answer: Device that separates a constituents of a
substance by their masses.
◉ Ion. Answer: Charged atom.
◉ Velocity selector. Answer: Component that uses an opposing electric
and magnetic field to ensure all particles going straight through have the
same speed and direction.
◉ Vacuum. Answer: Space where (nearly) all particles have been
removed (evacuated).
◉ Electromotive force. Answer: Force on electrons that tries to push
them along. Known as the emf.
◉ Electromagnetic induction. Answer: Phenomenon in which a
changing magnetic field, relative to a wire, will produce an emf.
◉ Fleming's right hand rule. Answer: Also known as the dynamo rule.
Works out directions involved in electromagnetic induction.
◉ Solenoid. Answer: Electrical coil.
, ◉ Lenz's law. Answer: "The direction of the induced current is always
such as to oppose the change that caused the current".
◉ Magnetic flux. Answer: Product of the magnetic flux density and the
area.
◉ Magnetic flux linkage. Answer: Product of the magnetic flux and the
number of turns of the coil.
◉ Faraday's law. Answer: "The induced emf in a circuit is equal to the
rate of change of flux linkage through the circuit".
◉ Alternator. Answer: Generator of AC.
◉ Back emf. Answer: An emf generated in a motor that works against
the current that is powering the motor.
◉ Step-up. Answer: Transformer that raises the voltage and lowers the
current (answer is hyphenated!)
◉ Step-down. Answer: Transformer that lowers the voltage and raises
the current (answer is hyphenated!)
