fundamentals of electric circuits fifth edition Charles K. Alexander and Matthew Sadiku.
Preface :
You may be
wondering why we chose a photo of NASA’s Mars Rover for the cover. We actually
chose it for several reasons. Obviously, it is very exciting; in fact, space
represents the most exciting frontier for the entire world! In addition, much
of the Rover itself consists of all kinds of circuits. Circuits that must work
without needing maintenance! Once you are on Mars, it is hard to find a
technician! The Rover must have a power system that can supply all the power
necessary to move it, help it collect samples and analyze them, broadcast the
results back to Earth, and receive instructions from Earth. One of the
important issues that make the problem of working with the rover is that it
takes about 20 minutes for communications to go from the Earth to Mars. So the
Rover does not make changes required by NASA quickly. What we find most amazing
is that such a sophisticated and complicated electro-mechanical device can
operate so accurately and reliably after flying millions of miles and being
bounced onto the ground!
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