GCSE Physics – Potential difference and resistance

Last updated: 06/05/2020
Eduqas GCSE Science – Combined science higher Electricity GCSE Physics – Potential difference and resistance

Learning Objectives

-I can define the terms potential difference and resistance
-I can recall the units needed for V = IR
-I can rearrange V = IR
-I can use V = IR

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  1. Current
  2. Review
  3. Answered

  1. What is potential difference?

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  2. What is another way of saying potential difference?

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  3. What is potential difference measured in?

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  4. What is resistance?

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  5. What is resistance measured in?

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  6. What is Ohm’s law?

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  7. What is the formula for voltage?

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  8. What is the formula for resistance?

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  9. What is the formula for current?

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  10. What is current measured in?

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  11. What is the current through a component dependent on?

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  12. The greater the resistance of the component,

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  13. What is the voltage if current is 0.005 A and resistance is 0.02 Ω?

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  14. What is the voltage if current is 50 A and resistance is 12 Ω?

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  15. What is the voltage if current is 20 A and resistance is 12 Ω?

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  16. What is the voltage if current is 0.5 A and resistance is 2 Ω?

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  17. What is the voltage if current is 32 A and resistance is 0.2 Ω?

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  18. If voltage is 20 V and resistance is 4 Ω, what is the current in the circuit?

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  19. If voltage is 34 V and resistance is 0.05 Ω, what is the current in the circuit?

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  20. If voltage is 80 V and resistance is 5 Ω, what is the current in the circuit?

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  21. If voltage is 120 V and resistance is 1200 Ω, what is the current in the circuit?

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  22. If voltage is 1 V and resistance is 0.005 Ω, what is the current in the circuit?

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  23. What is the resistance of the circuit if voltage is 30 V and current is 2 A?

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  24. What is the resistance of the circuit if voltage is 235 V and current is 2.4 A?

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  25. What is the resistance of the circuit if voltage is 0.02 V and current is 2 A?

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