Light Bulbs in Series and in Parallel. Two light bulbs
Chapter 26, Problem 21E(choose chapter or problem)
Light Bulbs in Series and in Parallel. ?Two light bulbs have constant resistances of 400 ? and 800 ?. If the two light bulbs are connected in series across a 120-V line, find (a) the current through each bulb; (b) the power dissipated in each bulb; (c) the total power dissipated in both bulbs. The two light bulbs are now connected in parallel across the 120-V line. Find (d) the current through each bulb; (e) the power dissipated in each bulb; (f) the total power dissipated in both bulbs. (g) In each situation, which of the two bulbs glows the brightest? (h) In which situation is there a greater total light output from both bulbs combined?
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