Current, potential difference and resistance exam tips

Exam tips

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain that some resistors have constant resistance while others change resistance as current changes..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to describe an ohmic conductor at constant temperature as having current directly proportional to potential difference..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain that an ohmic conductor has constant resistance as current changes when temperature is constant..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to describe how the resistance of a filament lamp increases as filament temperature increases..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to describe how current through a diode flows in one direction only..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain that a diode has very high resistance in the reverse direction..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to describe how the resistance of a thermistor decreases as temperature increases..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain how thermistors can be used in circuits such as thermostats..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to describe how the resistance of an LDR decreases as light intensity increases..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.

• Resistors exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain how LDRs can be used in circuits such as automatic lighting..

  This keeps your answer tightly aligned to the approved learning objective for Resistors.