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Key Terms
Power is the time rate
of expending or absorbing energy, measured
in watts (W).
Passive sign convention
is satisfied when the current enters through
the positive terminal of an element and
p
= +vi
. If the current enters through the negative
terminal, then p
= -vi.
Energy is the capacity
to do work. It is measured in joules (J).
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Content and Pedagogy© 2004, University of Ottawa,
Faculty of Engineering and Faculty of Education
Design and Production © 2004, University of
Ottawa, Centre for e-Learning
