Where, do you feel, is the greatest possible source of error in this experiment? Why?
Question 2
Two lightbulbs both operate on 120 V. One has a power of 25 W and the other 100 W. Which lightbulb has higher resistance?
1.The dim 25-W lightbulb does.
2.The bright 100-W lightbulb does.
3.Both are the same.