Unformatted text preview: In electrical engineering, we are often interested in communicating or transferring energy from one point to another. To do
this requires an interconnection of electrical devices. Such interconnection is referred to as an electric circuit, and each com— ponent of the circuit is known as an element. An electric circuit is an interconnection of electrical elements. -Current Electric current is the time rate of change of charge, measured in amperes (A). Direct current, alternating (ac current) pulsating direct
variable alternating Direct Current (red curve}. The horizontal axis measures time; the uertica I, current -V01ta,qe...
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