Series circuits

What is this

Series circuit

Definition of series circuit

Only one path for current to take

What is the current in series circuits?

Current is same everywhere as there is only one path for the current to take

What is the voltage in series

Voltage across each component adds to equal the battery voltage

What is the current in these positions? What is the voltage of the lamps? Battery voltage is 12

Current - 1A in all positions

Voltage - 4V across all lamps

What happens if you disconnect a lamp? What’s the voltage for 2 bulbs?

The brightness increases as voltage is shared among only 2 bulbs

The voltage over both bulbs would be 6V

What is the total resistance of the circuit?

19 ohms

How do you find the resistance of a series circuit

add all the individual resistances of each component together

What happens if you add more components?

It increases the resistance which makes it harder for current to flow