AQA A Level Physics Electricity Questions
with Correct Answers 2025
Electric current - correct answers-rate of flow of charge
Potential Difference - correct answers-work done (energy transferred) per unit charge
Ohm's Law - correct answers-current is directly proportional to potential difference, providing the
temperature and other physical conditions remain the same.
Ohmic conductor - correct answers-a conductor where I is directly proportional to V
Non-ohmic conductor - correct answers-a conductor where I is not directly proportional to V
Resistance of a Voltmeter and Ammeter - correct answers-Voltmeter resistance is very large (or infinite)
Ammeter resistance is very small (or zero)
Know the terms ρ, R, A and L in resistivity equation - correct answers-ρ is resistivity; R is resistance; L is
length and
A is the cross-sectional area
Resistivity - correct answers-Resistivity ρ is defined as ρ = RAL where R is the resistance of material
length L, and cross-sectional area A
In metals, what is resistivity proportional to - correct answers-temperature
because conducting electrons lose more energy in collisions with positive ions
Units of resistivity - correct answers-Ω m
Superconductivity - correct answers-a material with zero resistivity (or resistance) when cooled below
critical temperature
Use of superconductors - correct answers-can carry large currents with no energy losses
MRI scanners
Maglev trains
Particle accelerators eg Large Hadron Collider
Critical temperature - correct answers-temperature at, and below which, a material has zero resistivity
(or resistance)
Emf (ε) - correct answers-actual energy provided by the battery (or cell) per unit charge
OR
with Correct Answers 2025
Electric current - correct answers-rate of flow of charge
Potential Difference - correct answers-work done (energy transferred) per unit charge
Ohm's Law - correct answers-current is directly proportional to potential difference, providing the
temperature and other physical conditions remain the same.
Ohmic conductor - correct answers-a conductor where I is directly proportional to V
Non-ohmic conductor - correct answers-a conductor where I is not directly proportional to V
Resistance of a Voltmeter and Ammeter - correct answers-Voltmeter resistance is very large (or infinite)
Ammeter resistance is very small (or zero)
Know the terms ρ, R, A and L in resistivity equation - correct answers-ρ is resistivity; R is resistance; L is
length and
A is the cross-sectional area
Resistivity - correct answers-Resistivity ρ is defined as ρ = RAL where R is the resistance of material
length L, and cross-sectional area A
In metals, what is resistivity proportional to - correct answers-temperature
because conducting electrons lose more energy in collisions with positive ions
Units of resistivity - correct answers-Ω m
Superconductivity - correct answers-a material with zero resistivity (or resistance) when cooled below
critical temperature
Use of superconductors - correct answers-can carry large currents with no energy losses
MRI scanners
Maglev trains
Particle accelerators eg Large Hadron Collider
Critical temperature - correct answers-temperature at, and below which, a material has zero resistivity
(or resistance)
Emf (ε) - correct answers-actual energy provided by the battery (or cell) per unit charge
OR
