Practice Potential Difference (8.3) - Electricity and Magnetism

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6 sample questions

Question 1.
Define potential difference.
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Think about work and charge.
Question 2.
What is the unit of potential difference?
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Remember what we measure in circuits.
3Question 3.
What is the formula for calculating potential difference?
- V = W/Q
- V = Q/W
- V = W*Q
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Think about what variables are involved.
4Question 4.
True or False: A higher potential difference decreases the flow of charge.
- True
- False
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Consider how batteries work.
Question 5.
If a circuit operates at a potential difference of 9V and the current flowing is 3A, how much work is done in moving charges through the circuit over 5 seconds?
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Remember to use the formulas for work done.
Question 6.
In a circuit, if you increase the potential difference from 4V to 12V, how does it affect the flow of current if the resistance remains constant?
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Consider how voltage and current interact in Ohm's law.

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