Solving Unit Problems Made Easy: Understanding Electrical Power and Joules

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jfio93
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Homework Statement



which is unit is a unit of electrical power
v/a a/ohms a^2/ohm v^2/ohm
which unit is= to one joule
v/m a(x)v v/c c(x)v
thanks- the x is a multiplication sign

Homework Equations





The Attempt at a Solution

 
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for the first one i put v^2/ohms cause power v^2/R
the second one i put a times v
 
hi jfio93! :smile:
jfio93 said:
for the first one i put v^2/ohms cause power v^2/R

yes, 1 V2Ω-1 = 1 W, which is power :smile:
the second one i put a times v

1 A times 1 V is 1 W … that's not 1 J :redface:

hint: what is the definition of voltage? :wink:​
 
well can't it be used interchangeably as potential difference so i no v is there i would say v/c
 
(just got up :zzz: …)
jfio93 said:
well can't it be used interchangeably as potential difference

yes, voltage difference and electric potential difference are the same :smile:

and electric potential is defined as … ? :wink:​