I have seen quite a few times now where someone creates a simple circuit and when describing the configuration of the components they say that it is either in parallel or serial.

I have only ever heard of parallel and series, is the word serial a mistake or are components in series also called serial ?

  • 2
    \$\begingroup\$ Series is correct. \$\endgroup\$
    – Transistor
    Feb 10, 2020 at 7:59
  • \$\begingroup\$ Series is correct. But even if misused it should be fairly obvious in context which one is being referred to. Like if I say I have a pair/pear...unless we're playing poker while I'm eating a pear. \$\endgroup\$
    – DKNguyen
    Feb 10, 2020 at 8:12
  • 3
    \$\begingroup\$ You might pare a pear whilst being dealt a pair @DKNguyen \$\endgroup\$
    – Andy aka
    Feb 10, 2020 at 8:55

2 Answers 2

  1. The resistors R1 and R2 are connected in series
  2. The serially connected resistors R1 and R2, share the input voltage unequally
  3. The current through the resistors are the same as they are in series.
  4. Serial and parallel connections sounds odd compared to series and parallel LEDs
  5. For communication protocol, always serial is used.. Serial WiFi, parallel port, Serial port etc.


simulate this circuit – Schematic created using CircuitLab


Typically components would be connected in series and a data protocol can be serial.


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