Asked by josh
a 75w and 50 w incandescent light bulbs are designed fot use with the same voltage. what is the ratio of the resistance of the 75- w bulb to the resistance of the 50 w bulb?
Answers
Answered by
bobpursley
power= v^2/R
so power is inverely prop to resistance.
R75/R50=50/75
so power is inverely prop to resistance.
R75/R50=50/75
Answered by
Frank McGovern
0.67
Answered by
ewfwefefewf
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