Electrical circuits Flashcards
1
Q
For components in parallel, is the voltage across them all the same or different?
A
all the same
2
Q
What is Kirchhoff first law?
A
the current that enters a point = the current leaving
3
Q
What is the resistance inside an emf called?
A
Internal resistance
4
Q
What is external resistance known as?
A
the load
5
Q
What is the maximum power theorem?
A
maximum power is reached when the load is equal to the internal resistance.
6
Q
Do capacitors allow dc or ac current to flow?
A
ac
7
Q
What is the symbol for inductance?
A
squiggly lines, L
8
Q
Does an inductor allow ac or dc current to flow?
A
dc
9
Q
What is resistance in an ac circuit called?
A
reactance
10
Q
What is impedance?
A
the over all resistance/reactance in a circuit
