Circuit Flashcards

1
Q

Capacitor have a low reactance for

A

Hugh frequencies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Inductor has low reactance

A

For low frequencies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

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

A

Resistor will dissipate energy
Inductor will store energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Back emf

A

A changing current causes a change in magnetic feild

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

By considering the magnetic field around the inductor. Explain why the back EMF produced is large enoguht to all the neon lamp to flash

A

Magnetic field collapses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The inductance increase the rest says the same.
State whether the frequency of the flashes will increase, stay the same or decrease

A

The frequency decreases
Since increases inductance increases time constant.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

State which ammeter (dc or ac) displays the greater current reading

A

The dc ammeter will display the greater current since the ac current will generate reactance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly