# EE100CH6 - Basic Circuit Analysis • Application of...

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Unformatted text preview: Basic Circuit Analysis • Application of Ohm’s and Watt’s Laws • Kirchhoff’s Voltage Law • Kirchhoff’s Current Law • Series Resistance • Parallel Resistance • Voltage Divider • Current Division Circuit 1 • Conductor + Resistor + Battery = current? • Who’s doing the work? • Is energy conserved? V R + +-- Recall Ohm’s Law IR V = EXAMPLE 6.1 Solve for voltage Recall Watt’s Law P IV = R I IR I P 2 ) ( = = R V V R V P 2 = ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ = EXAMPLE 6.4 Find power dissipated. Kirchhoff’s Voltage Law (KVL) This law states that for any closed loop in a circuit, the algebraic sum of the voltages around the loop must be equal to zero. Applied: solving for current 9V 9V 3V 3V 125 125 Ω 570 570 Ω 250 250 Ω 50 50 Ω 175 175 Ω 9V 9V 3V 3V 125 125 Ω 570 570 Ω 250 250 Ω 50 50 Ω 175 175 Ω Using KVL to solve for loop current Step 1: Label the polarity of each component in the circuit loop. Higher voltage relative to ground with a plus sign (+) and the Lower voltage relative to ground with a negative sign (-) 9V 9V 3V 3V 125 125 Ω 570 570 Ω 250 250 Ω 50 50 Ω 175 175 Ω 9V 9V 3V 3V 125 125 Ω 570 570 Ω 250 250 Ω 50 50 Ω 175 175 Ω + + + + + + +------- Step 2: Choose a direction for the current in the circuit loop. By convention Choose a direction for the current in the circuit loop....
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EE100CH6 - Basic Circuit Analysis • Application of...

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