(a) The impedance of an capacitor at DC is infinity (b) The current through and
ID: 2082228 • Letter: #
Question
(a) The impedance of an capacitor at DC is infinity (b) The current through and the voltage across an inductor are "out of phase" with each other. (c) Resistors, capacitors, and inductors consume power in an AC circuit. (d) An AC circuit is any circuit that operates with a forcing source that can be described with a single sinusoid (e) The effective power in an AC circuit is obtained by multiplying the current and voltage rms values. (f) The MATLAB code for plotting the impedance of an AC circuit at any frequency could be: >> A = [1 2 1]; >> B = [20]; >> freqs (B, A) g) The load resistance for maximum power transfer in an AC circuit should be equal to R_Th for the circuit. (h) Complex impedances result from memory storage devices. (i) A complex number is usually represented as a vector in R^2 (j) KCL must be altered slightly to accommodate AC circuits. (k) AC circuits are a special case of the information circuits (the op amp circuits that we studied for MTE2 in this class. (l) The current leads the voltage in an inductor found in an AC circuit.Explanation / Answer
(a) TRUE
(b) TRUE
(c) FALSE
(d) FALSE
(e) FALSE
(g) FALSE
(j) TRUE
(l) FALSE
THESE ARE THE BASICS IN ELECTRICAL CIRCUITS.
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