A charge of #16 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #48 J# to #12 J#, what is the voltage between points A and B?

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Answer 1 · 2016-04-14T15:35:39

#V_"AB"=-2,25 V#

#q=16C#
#E_A=48 J" the electric potential energy at the point of A"#

#E_B=12J" the electric potential energy at the point of B"#

#E_B-E_A=12-48=-36J" work between the A and B"#

#W=q*V_"AB"#

#-36=16*V_"AB"#

#V_"AB"=-36/16#

#V_"AB"=-2,25 V#