Elec Class

learn electricity hands-on

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Solved exercise · level 3 of 5

North pole of the coil

Skills: Analyse

Statement

The current enters from the left and goes round the turns rising in front, then falling behind (top view). Click the end that is the north pole of the coil (right-hand rule: fingers follow the current, the thumb gives north).

2 hints from Bastaya available in the lab
Solution

Right hand wrapped in the current direction: the thumb points left, end A is the north pole; field lines leave through A.

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

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