Current, potential difference and resistance common mistakes

Common mistakes

• Electrical charge and current common mistake 1

  Giving a vague answer instead of directly addressing: Identify charge flow Q in coulombs, current I in amperes and time t in seconds..

  Fix itAnswer by clearly explaining how to identify charge flow Q in coulombs, current I in amperes and time t in seconds..

• Electrical charge and current common mistake 1

  Giving a vague answer instead of directly addressing: Calculate charge flow when current and time are known..

  Fix itAnswer by clearly explaining how to calculate charge flow when current and time are known..

• Electrical charge and current common mistake 1

  Giving a vague answer instead of directly addressing: Calculate current when charge flow and time are known..

  Fix itAnswer by clearly explaining how to calculate current when charge flow and time are known..

• Electrical charge and current common mistake 1

  Giving a vague answer instead of directly addressing: Calculate time when charge flow and current are known..

  Fix itAnswer by clearly explaining how to calculate time when charge flow and current are known..

• Electrical charge and current common mistake 1

  Giving a vague answer instead of directly addressing: State that current has the same value at any point in a single closed loop..

  Fix itAnswer by clearly explaining how to state that current has the same value at any point in a single closed loop..

• Electrical charge and current common mistake 1

  Giving a vague answer instead of directly addressing: Use MS 3b and MS 3c skills when rearranging and calculating with Q = I x t..

  Fix itAnswer by clearly explaining how to use MS 3b and MS 3c skills when rearranging and calculating with Q = I x t..

• Current, resistance and potential difference common mistake 1

  Giving a vague answer instead of directly addressing: Explain that current through a component depends on resistance and potential difference..

  Fix itAnswer by clearly explaining how to explain that current through a component depends on resistance and potential difference..

• Current, resistance and potential difference common mistake 1

  Giving a vague answer instead of directly addressing: Explain that a larger resistance gives a smaller current for the same potential difference..

  Fix itAnswer by clearly explaining how to explain that a larger resistance gives a smaller current for the same potential difference..

• Current, resistance and potential difference common mistake 1

  Giving a vague answer instead of directly addressing: Use the term potential difference accurately and recognise voltage as an accepted alternative term..

  Fix itAnswer by clearly explaining how to use the term potential difference accurately and recognise voltage as an accepted alternative term..

• Current, resistance and potential difference common mistake 1

  Giving a vague answer instead of directly addressing: Recall and apply the equation V = I x R..

  Fix itAnswer by clearly explaining how to recall and apply the equation V = I x R..