Q:

The unit of potential difference is the volt. What does the number of volts tell us?

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The unit of potential difference is the volt. What does the number of volts tell us? 


  1. How much energy one coulomb of electrons loses as it moves through the potential difference.
  2. How much diffi culty one coulomb of electrons has in moving through a circuit.
  3. How many coulombs of electrons are moving per second.
  4. How much energy per second electrons lose as they move through the circuit.

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A: Choice B refers to electrical resistance. Choice C refers to the current in amperes (1A =1C/s). Choice D refers to power (P = A/s). 

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