A charge of #12 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #70 J# to #34 J#, what is the voltage between points A and B?
1 Answer
Jul 20, 2017
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Lets see what information we have :
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Charge (C)
#=12C# -
At
#color(blue)A# , eletric potential energy (#E# )#=70J# -
At
#color(red)B# , electric potential energy (#E# )#=34J# -
Change in
#E# #=70J-34J# #=36J# -
Formula relating those informations
#rarr# #color(green)E=# Charge (C)# * # potential difference (V) -
Therefore,
#E=C*V#
#36=12V#
#12V=36#
#V=36/12# #=3V# #larr#
