How
do we express voltage?
Voltage is expressed as energy
per charge unit (joule/coulomb) as in
the following equation:
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(3.6) |
where
v
= potential difference measured
in volts (V)
w
= energy (work) carried by charge
in joules (J)
q
= amount of electric charges
in coulombs (C)
Range of Voltages
Do you know that we encounter
a wide range of voltages in our daily
life? Can you list some examples of
very low to very high voltages?
Type your answer in the box below:
Table 3.1 List voltages ranging from
extremely high voltages to very small
voltages
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