Salve a tutti,
per poter aver accesso ad un sito " elettrico" devo rispondere ad alcuni quesiti.
Può qualcuno esperto suggerirmi la risposta?
1. How to connect an amper meter into a circuit?
c; Depend on current density paralel or series
2. What kind of modulation is shown in the picture? -
SEE PHOTO 1
a; general modulation (GM)
b; frequency modulation (FM)
c; amplitude modulation (AM)
d; LW modulation (LM)
3. Why is it neccesary to use isolation transformer?
a; It stabilizes the voltage of the appliance to be repaired
b; Line power is transformed sinus wave and measurement is made more exact by it.
c; It makes the appliance to be reapired independent from the line power, it has only lifeguard task
4. What is shown in the picture?
SEE PHOTO 2
a; Power supply unit
d; Heat sink
Grazie per la risposta