ECE201Lect-6

ECE201Lect-6 - ECE201 Lect-6 1 Series and Parallel Resistor...

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Unformatted text preview: ECE201 Lect-6 1 Series and Parallel Resistor Combinations (2.5, 8.5) ECE201 Lect-6 2 Introduction For analysis, series resistors/impedances can be replaced by an equivalent resistor/ impedance. Parallel resistors/impedances can be replaced by an equivalent resistor/ impedance. ECE201 Lect-6 3 Introduction Complicated networks of resistors/ impedances can be replaced by a single equivalent resistor/impedance. ECE201 Lect-6 4 Equivalent Resistance i(t) + v(t) i(t) + v(t) R eq R eq is equivalent to the resistor network on the left in the sense that they have the same i-v characteristics. ECE201 Lect-6 5 Equivalent Resistance The rest of the circuit cannot tell whether the resistor network or the equivalent resistor is connected to it. The equivalent resistance cannot be used to find voltages or currents internal to the resistor network. ECE201 Lect-6 6 Equivalent Impedance I + V I + V Z eq Z eq is equivalent to the network on the left in the sense that they have the same phasor I-V characteristics at the frequency . ECE201 Lect-6 7 Series Resistance R 1 R 3 R 2 R eq R eq = R 1 + R 2 + R 3 ECE201 Lect-6...
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ECE201Lect-6 - ECE201 Lect-6 1 Series and Parallel Resistor...

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