Q3 of 330 Page 5

Which device is used to measure p.d.?

Voltmeter is a device which is used to measure potential difference between two point in an electric ciruit.


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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?

 4

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

 5

How much work is done when one coulomb charge moves against a potential difference of 1 volt?