top of page
ohmymaths

Kirchhoff's Circuit Laws: Example 1

Question:

The small DC circuit shown below has failed in service owing to excessive currents. A review of the circuit voltages and currents needs to be made to aid the inspection process. For this purpose, determine the currents and voltages in the circuit shown below. Apply Kirchhoff’s laws to your circuit to confirm the accuracy of the currents and voltages present within the circuit.

Answer:


Step 1: Convert R2 and R3 from parallel to series.

Step 2: Convert R4, R5 & R6 from parallel to series.

Step 3: Combine R1, R7 and R8 as they are in series.

Step 4: Calculate the total circuit current.

Step 5: Calculate voltage drops through sections of circuit. Remember voltages are equal through parallel branches of circuits, therefore we can analyse the voltage drops as a series circuit seen below.

Step 6: Calculate currents going through each resistor.


46 views0 comments

Recent Posts

See All

Principle Stresses: Example 2

Question: The direct stresses acting on an element of material, on orthogonal planes, are 85N/mm^2 (tensile) and 45N/mm^2 (tensile)...

Eccentric Loading: Example 1

Question: A hole in a pressure vessel end plate repair casting is being drilled using a radial arm drill. The distance from the drill...

コメント


bottom of page