Elec 2: Series And Parallel Rules

Question 1

What are the current and voltage rules for series circuits?

Answer 1

Current is the same, voltage is split between components

Question 2

What are the current and voltage rules for parallel circuits?

Answer 2

Current is split across branches, voltage is the same across branches

Question 3

What is the resistance rule for series circuits?

Answer 3

Rt = R1 + R2 + R3 + …

Total resistance is always more than that of any single resistor

Question 4

What is the resistance rule for parallel circuits?

Answer 4

1/Rt = 1/R1 + 1/R2 + …

Total resistance is always less than that of any single resistor

Question 5

What happens when you connect cells in parallel?

Answer 5

If cells have same P.D., total P.D. = P.D. of one cell

Question 6

What happens if you connect cells in series

Answer 6

P.D. of all cells add up.

Question 7

What is an amp hour?

Answer 7

The amount of amps a cell can supply for one hour before dying