Question

Problem 4: Bulbs A and Cuse 40 W of power when conmected to a 120VE standard 120-volt outler. BulbsB and D use 60 W uhen Bulbs A and C connected directly to voltage source. to a standard outlet. A student connects bulhs A and B in series to a standard outlet and bulbs C and D in parallel to a standard ouclet as shown Series circuit 6o w Bulbs B and D connected directly to voltage source. Parallel circuit (a) Calculate the resistance of bulbs A. B, C, and D. Show caleulations and state the results clearl (b) Rank the bulbs based on the voltage drop one each from greatest to least and explain your reasoning. You may make calculations if necessary but your explanation must cite qualitative physical concepts. 11-3 based on the current that passes through each one from greatest to least and explain. (c) Rank the bulbs Least Current d) Rank the bulbs based on their brightness from brightest to dimmest and explain. (Think about wh brightness depends on.) righlest Dimmest Problem 5: A scientist is performing an experiment to measure the Coulomb's Law constant k. The scientist builds a very small apparatus shown in the figure, where an insulating ramp is angled at an from the horizontal. Fixed to tha

Answer 1

12oV R. uo = (120) RA 0 x12 2. 60 A 'G oroe.conve cled series -ccses 12ον b Go x 120

12 0 60 240 360 2uo 2 5 cwoernkさ Ro 205 5 連: 0.66A のseakesr Least