Q1 of 330 Page 5

By what other name is the unit joule/coulomb called?

1 V is the potential difference between any two points that will impart an energy equal to 1 Joule per 1 coulomb of charge that passes through it. In other words,


 or

 

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2

Which of the following statements correctly defines a volt?


(a) A volt is a joule per ampere.


(b) A volt is a joule per coulomb.

 3

What do the letters p.d. stand for?

 3

Which device is used to measure p.d.?

 4

What is meant by saying that the electric potential at a point is 1 volt?