Circuit Flashcards
Capacitor have a low reactance for
Hugh frequencies
Inductor has low reactance
For low frequencies
Explain why it is more effective to use an inductor. Rather than an additional resistor. To ensure that maximum enegery is delivered to the patient
Resistor will dissipate energy
Inductor will store energy
Back emf
A changing current causes a change in magnetic feild
By considering the magnetic field around the inductor. Explain why the back EMF produced is large enoguht to all the neon lamp to flash
Magnetic field collapses
The inductance increase the rest says the same.
State whether the frequency of the flashes will increase, stay the same or decrease
The frequency decreases
Since increases inductance increases time constant.
State which ammeter (dc or ac) displays the greater current reading
The dc ammeter will display the greater current since the ac current will generate reactance