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📘 Trace nodes before you add

Series shares one current path. Parallel shares two nodes and the same voltage. Name the connection before arithmetic.

3
lessons
~15 min
to learn
Adults
level
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What you’ll learn

  1. Name the connectionDistinguish series and parallel connections by tracing nodes.Series shares one current path; parallel shares two nodes and the same voltage.
  2. Reduce the networkReduce mixed networks step by step and check results with physical bounds.Replace parallel groups first when inside a branch, then add series equivalents; verify with Ohm's law.
  3. Current and voltageExplain how current splits in parallel and voltage drops add in series.Parallel branches share V and divide I; series elements share I and divide V.

Questions this course answers

Which statement describes resistors in parallel?

Parallel components connect across the same pair of nodes and therefore share voltage.

What is the safest first step for a mixed network?

Topology determines which series or parallel rule applies, so trace nodes before calculating.

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