Electricity 2

Question 1

What happens to current and voltage in a Parallel Circuit?

Answer 1

In parallel I is added, V is equal

Question 2

What is Power?

Answer 2

The rate at which energy is transferred (1W=1J/1s)

Equation: P=VI

Question 3

How do you combine power with Ohm’s Law?

Answer 3

For voltage: P=VI ➡ P=V(V/R) ➡ P=V^2/R

For Current: P=VI ➡ P=IRI ➡ P=I^2R

Question 4

What to use for equilibrium resistance?

Answer 4

Use R=R1+R2+… for series only

Use 1/R=1/R1+… for parallel circuit

Question 5

Kirchoff’s Current Law

Answer 5

Total current entering junction = amount leaving junction

Question 6

Kirchoff’s Voltage Law

Answer 6

Total voltage gain (source)=voltage drop (loads)

Question 7

What happens to current and voltage in a Series Circuit?

Answer 7

In series I is all equal, V is added up