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Solved exercise · level 2 of 5

Where to measure the current?

Skills: Build

Statement

This circuit is meant to measure the lamp's voltage and current, but V1 is misplaced: the lamp stays off and A1 reads 0.

Fix the voltmeter connection.

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

2 hints from Bastaya available in the lab
Solution

The ammeter goes in series (the measured current flows through it), the voltmeter in parallel (it compares the potentials of two points). The lamp lights and A1 reads 2 A.

Course sheet of the chapter : Voltage & current

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

Other exercises of the chapter

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

Circuit diagram CEI 60617

How does it work?

Each big hole is a circuit node: you push one leg of a component into it. The 4 small holes around it are connected to it: chips and leads plug in there.

  1. Place a component Drag it from the palette: it snaps onto the grid. R rotates it.
  2. Bridge neighbouring holes Pick the jumper chip (or C) and drag on the board: bridged holes become a single node.
  3. Draw a lead For long links and the power supply: from one big hole to another, or to a terminal.
  4. Close the loop The circuit is solved live (Ohm, Kirchhoff) and the diagram follows.

Shortcuts

Del
delete
R
rotate
C
chip brush
Esc
cancel
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fit the board
drag background
pan

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