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electricity (Electromagnetic mechanism (El ectromagnetic generator (Dyn…

- - - - consist of a magnet, Inside which there is a coil ending in
        two separate semtctrcular conductors known as the commutator.
    - - s are practtcaflv Identical to dynamos The only difference
        is that the cofler.tor consists of two nngs, and each ring Is In contact
        wtth a brush
- - - - Eq uivalent value of alternating currents (rm
      - Tr ansforme
- - - - transform electricity in to energy into light.
    - - transform electric energy mto rotarv movement
    - - s transform electricity energy mto hea
- - - - The heat energy generated by an electric current ls called the louie
        effect. We can calculate it usmg the formula:
        F= V I r = i' R
  - - - An electnc current heats a metafllc filament that threaded cu i u produces light This phenomenon is called incandescence.
    - - s. Inside the tubes there is a metafllc fdament,
    - - are fluorescent lamps that consume much less