EE100CH6 - Basic Circuit Analysis Application of Ohms and...

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Unformatted text preview: Basic Circuit Analysis Application of Ohms and Watts Laws Kirchhoffs Voltage Law Kirchhoffs Current Law Series Resistance Parallel Resistance Voltage Divider Current Division Circuit 1 Conductor + Resistor + Battery = current? Whos doing the work? Is energy conserved? V R + +-- Recall Ohms Law IR V = EXAMPLE 6.1 Solve for voltage Recall Watts Law P IV = R I IR I P 2 ) ( = = R V V R V P 2 = = EXAMPLE 6.4 Find power dissipated. Kirchhoffs 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 125 125 570 570 250 250 50 50 175 175 9V 9V 3V 3V 125 125 570 570 250 250 50 50 175 175 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 125 125 570 570 250 250 50 50 175 175 9V 9V 3V 3V 125 125 570 570 250 250 50 50 175 175 + + + + + + +------- 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 Ohms and...

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