Labo Élec

electrical lab simulator
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Exercise from the chapter "Resistor networks"

Build a series circuit and read a partial voltage

Level 2 of 5 · Skills: Build, Analyse

Statement

Build R₁ = 22 Ω, R₂ = 12 Ω and R₃ = 39 Ω in series on G (12 V), setting their values in the inspector. Then compute the voltage across R₂ and enter it (the Measurements panel will confirm it).

Parametric exercise: the values change with every draw; these are one example.

3 hints from Bastaya available in the lab
Solution

I = 12 / (22 + 12 + 39) = 164 mA; u₂ = R₂ × I = 1.97 V. The sum u₁ + u₂ + u₃ gives back 12 V.

Course sheet of the chapter : Resistor networks

This chapter is covered by the paths: ISL-oriented exercises

Other exercises of the chapter

Simulated time00:00:00
Q = I·t-
W = P·t-

Workbench

Circuit diagram CEI 60617

How does it work?

The perfboard: each big hole is a circuit node. You push a single leg of a component (resistor, lamp...) into it. The 4 small holes around it are connected to it: that is where chips and leads plug in.

  1. Drag a component onto the board: it snaps onto the grid. R rotates it.
  2. To join neighbouring big holes, click Jumper chip in the palette (or C) then drag on the board: a line of chips is laid at once. Bridged holes become a single node.
  3. For long links and for the power supply (placed next to the board), drag a lead from one big hole to another (or to a terminal).
  4. As soon as a loop is closed, the circuit is solved in real time (Ohm + Kirchhoff) and the diagram follows.
  5. Zoom with the wheel (or + / −, two-finger pinch); drag the background to pan, 0 fits the board. The + buttons around the board add a row or a column.

Del delete · R rotate · C chip brush · Esc cancel · wheel zoom · drag the background to pan

Confirmer

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