1.4 Series, parallel, mixed
Outcome 4 of 9 in domain 1 · Foundations, direct current
Voltage and current dividers.
My targets
I declare:
Exercises
By target, three levels: the bare notion, the application, the reasoning. Calculations, true-or-false and choices are checked here; for an essay, you read the answer and judge yourself.
Target 10 of 9
Calculate the equivalent resistance of a series, parallel and mixed circuit, then verify it with the ohmmeter.
Target 20 of 9
Size a voltage divider to read a 48 V battery on a 3.3 V input, and say what the downstream load does to it.
Target 30 of 9
Explain why a pack’s cells are in series for voltage and in parallel for capacity, with the numbers of a real pack (e.g. 10S3P).
Target 40 of 9
Predict the current in each branch of a parallel of unequal resistors, then measure it.
Target 50 of 9
Build a Wheatstone bridge, balance it, and explain why it’s the basis of most strain-gauge sensors.
Target 60 of 7
Diagnosis: an LED string with half the lights out, deduce the wiring and locate the break without taking it apart.