Material:

1.5 V cell                                 Connecting wires

Various bulbs                         Ammeter

 

What did u find out?

1.  Which circuit had the largest current?

The largest circuit current is the big bulb that has 190 mA.

2. Which circuit has the smallest current?

The largest circuit current is the weird shaped that we called that has 48 ma.

3. What is the purpose of the switch in this circuit?

The purpose of the switch is to turn of or turn on the current to make the bulb lights.