Elec Class

learn electricity hands-on
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Solved exercise · level 1 of 5

First resistor

Skills: Build, Measure

Statement

Drag a resistor from the palette onto the board: it snaps into two big holes.

Anywhere will do.

2 hints from Bastaya available in the lab
Solution

A 220 Ω resistor at 9 V lets I = U / R = 9 / 220 ≈ 40.9 mA through.

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

This chapter is covered by the paths: Discovery, General electricity

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
zoom
0
fit the board
drag background
pan

Confirmer

Renommer

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