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How to find equivalent resistance in a complex circuit

Circuit Analysis For Dummies. When doing circuit analysis, you need to know some essential laws, electrical quantities, relationships, and theorems. Ohm’s law is a key device equation that relates current, voltage, and resistance. Using Kirchhoff’s laws, you can simplify a network of resistors using a single equivalent resistor.

how to find equivalent resistance of complex circuits in less time ? If we are provided with a complex resistance then most of the chances are there that it ma ×. 11) Determine the equivalent resistance of the circuit shown. 12) Calculate the current measured by ammeter A 1 in the diagram shown. Original circuit KLR on the loop containing battery and 3 resistor 1 13) Calculate the resistance of the unknown resistor, R in the diagram shown. Resistors in parallel OR KJR A KLR on outer loop 14.

Now R2 , R5 and R7 are in series and equivalenet resistance of this series combination is 6 Ω . Hence in step-2 , this series combination is replaced by 6 Ω resistor . Equivalenet resistance of parallel combination is ( 2 × 6 ) / (2+6) = 1.5 Ω . Hence, finally, resistance between A and B is ( 2 + 1.5 + 2 ) = 5.5 Ω.

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