Three identical light bubs, 81, 82, and B3 are connected to a constant voltage battery as shown In the figure. The light bubs havs constant resistance and their brightness is proportional to the current passing through them. The switch Sas shown is in the open position. What happens to the brightness of buibe B1 and B3 when we close the witch 8? B2 B1 IS OB3 A The brightness of B1 and B3 do not change. B. The brightness of both B1 and B3 decreese. C. The brightness of both Bt and B3 increase. D. The brightness of B1 decreases but the brightness of B3 increases. E The brightness of B1 increases but the brightness of 83 decreases. Resel Selection

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