Electric Power
AP Physics 2 · Flashcards · Recall
AP PHYSICS 2 · FLASHCARDS
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QUESTION
What is the role of a transformer in power transmission?
QUESTION
Identify the formula for power loss in terms of voltage drop and current.
QUESTION
How is power related to current and voltage in an AC circuit?
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ANSWER
P
=
V
I
cos
ϕ
P = VI \cos \phi
P
=
V
I
cos
ϕ
. AC power includes the phase angle factor.
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