Electricity 2 Flashcards
1
Q
What happens to current and voltage in a Parallel Circuit?
A
In parallel I is added, V is equal
2
Q
What is Power?
A
The rate at which energy is transferred (1W=1J/1s)
Equation: P=VI
3
Q
How do you combine power with Ohm’s Law?
A
For voltage: P=VI ➡ P=V(V/R) ➡ P=V^2/R
For Current: P=VI ➡ P=IRI ➡ P=I^2R
4
Q
What to use for equilibrium resistance?
A
Use R=R1+R2+… for series only
Use 1/R=1/R1+… for parallel circuit
5
Q
Kirchoff’s Current Law
A
Total current entering junction = amount leaving junction
6
Q
Kirchoff’s Voltage Law
A
Total voltage gain (source)=voltage drop (loads)
7
Q
What happens to current and voltage in a Series Circuit?
A
In series I is all equal, V is added up
