Elec Class

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Solved exercise · level 2 of 5

Misconnected instruments

Skills: Build

Statement

A1 reads 0 A although G supplies 12 V: voltmeter V1 is in series and blocks the current.

Reconnect V1 in parallel with R1 (and close the circuit again).

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

2 hints from Bastaya available in the lab
Solution

Voltmeter in parallel (huge resistance, does not disturb the circuit), ammeter in series (almost zero resistance). A1 then reads 255 mA and V1 12 V.

Course sheet of the chapter : Ohm's law & resistance

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-

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
wheel
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0
fit the board
drag background
pan

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