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Questions
1.
Which has a greater resistance, a 60watt bulb or a 40watt bulb?
40 Watts bulb
2.
How does the calculated power compare with the rated power of each bulb in
parts (1) and (2)?
The calculate power is slightly off from the rated power. For a 60watt bulb the calculated
power was 57.6, which is 2.4 less than the rated power. For a 40watt bulb the calculated
power was 42, which is 2 more than the rated power.
3.
How does the effective (combined) resistance of the two bulb in parallel compare
with their individual resistance?
The resistance for the two bulbs in parallel is much less than the resistance of the bulb
individual light bulb.
4.
How does the combined power output of the two bulbs in parallel compare with
their combined rated power?
The combined power outlet of the two bulbs in parallel is slightly less than the individual
light bulbs combined.
5.
When the two bulbs are connected in series, does each lamp draw full power? Can
you explain why?
When the two bulbs are connected in series they do not draw full power. One of the bulbs
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 Spring '10
 STAFF

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