Series and Parallel Circuit

Question 1

How many loops does a Series Circuit have

Answer 1

1

Question 2

How many loops does a Parallel Circuit have

Answer 2

2+

Question 3

What is the current of a Series Circuit

Answer 3

Same all the way round

Question 4

What is the current of a Parallel Circuit

Answer 4

Shared across the components

Question 5

How to work out resistance is a Series Circuit

Answer 5

Add together R total = R1 + R2 + …

Question 6

How to work out resistance is a Parallel Circuit

Answer 6

Total resistance will decrease if two or more resistors
are added in parallel.
Resistors in parallel have the same pd across them as the
power supply. Adding another loop to the circuit means the
current has more than one way it has to go. The total current
around the circuit increases. An increase in current means a
decrease in resistance (V = IR)

Question 7

What is the purpose of a Fixed Resistor

Answer 7

Limits the current in a circuit.

Question 8

How does the Fixed Resistor work

Answer 8

At a constant temperature, the potential difference is directly
proportional to the current.
If the potential difference increases, the current increases.
The resistance doesn’t change when the current changes.
Obeys Ohm’s law. It is an ohmic conductor.
Obeys V = IR