Friday, 9 January 2015

Difference Between Watts And Volt-Amperes




3 comments:

  1. One can make a circuit breaker as follows:
    12V solenoid with plunger
    battery connector
    pliers
    polyboard base 20 x 30 cm
    220R resistor
    paperclip
    LED
    4 crocodile clips
    adhesive tape
    aluminium foil
    wire
    wire strippers
    scissors
    9V battery
    six 2.5 cm polyboard squares
    double sided adhesive tape
    1. Push the legs of LED and the resistor through a polyboard square so that longer leg (anode) of LED is next to a resistor leg. Using pliers, twist the two legs together. Bend the free legs so that they project beyond the square.
    2. Bend paperclip into a right angle to make a contact. Tape the horizontal part to the base and connect it to positive battery terminal. Mount LED square on two more squares fixed vertically to the base. Connect free LED leg to the negative terminal.

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