GCSE Physics – Power and potential difference
Learning Objectives
-I can describe how power in a circuit is related to the potential difference
-I can use, rearrange and can recall the units needed for P = VI
-I can use, rearrange and can recall the units needed for P = IR
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- Current
- Review
- Answered
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1. Question
What is potential difference the same as?
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2. Question
What is the unit for power?
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3. Question
What is the unit for potential difference?
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4. Question
What is the unit for current?
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5. Question
What is the relationship between power, potential difference and current?
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6. Question
What is the relationship between power, current and resistance?
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7. Question
What is the unit for resistance?
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8. Question
The voltage of a component is 1200 V and the current is 0.2 A, so what is the power?
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9. Question
The voltage of a component is 0.002 V and the current is 0.04 A, so what is the power?
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10. Question
The voltage of a component is 6 V and the current is 3 A, so what is the power?
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11. Question
The voltage of a component is 12 V and the current is 5 A, so what is the power?
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12. Question
If the power is 160 W and potential difference is 40 V, what is the current through the component?
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13. Question
If the power is 200W and potential difference is 0.04V, what is the current through the component?
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14. Question
If the power is 20 W and potential difference is 5 V, what is the current through the component?
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15. Question
What is the voltage across a component that has 6,000 A of current and 36,000,000 W of power?
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16. Question
What is the voltage across a component that has 1,000,000 A of current and 1 W of power?
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17. Question
What is the voltage across a component that has 11 A of current and 121 W of power?
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18. Question
What is the voltage across a component that has 45 A of current and 324 W of power?
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19. Question
What is the voltage across a component that has 12 A of current and 36 W of power?
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20. Question
What is the power if the current is 16 A and the resistance is 2 Ω?
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21. Question
What is the power if the current is 3 A and the resistance is 0.34 Ω?
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22. Question
What is the power if the current is 2 A and the resistance is 20 Ω?
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23. Question
The power is 80 W and resistance is 20 Ω. What is the current through the component?
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24. Question
The power is 100 W and resistance is 5 Ω. What is the current through the component?
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25. Question
The power is 10 W and resistance is 40 Ω. What is the current through the component?