Final answer:
The first step in analyzing a combination circuit is to determine whether the resistors are in series, parallel, or a combination of both. If they are in series, the total resistance can be calculated by adding up the individual resistances
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Step-by-step explanation:
The first step in analyzing a combination circuit is to determine whether the resistors are in series, parallel, or a combination of both.
This can be done by examining the circuit diagram and determining if the same current must pass sequentially through the resistors.
If they are in series, the total resistance can be calculated by simply adding up the individual resistances.
If they are in parallel, the reciprocal of the total resistance can be found by summing the reciprocals of the individual resistances.
If the combination circuit has both series and parallel connections, it may need to be simplified by considering individual groups of series or parallel connections.
This can be done step by step in order to solve for the unknowns.
It is also important to check the answers to ensure they are reasonable and consistent, both in terms of units and numerical results.
For example, total series resistance should be greater than individual resistances, whereas total parallel resistance should be smaller.