Question

6. (2 pts) In the table below, compare the light intensities before the switch is closed to the intensities after the switch is closed. Please refer to question III on the next page for additional questions about this circuit.

Answer 1

Date:..... А 13 C (6 R32 RR E Before switch is closed I) E 3R bulb with E²R 98² Grough a um Power dissipated in each I²R = E² 9R After switch is closed No merrent flowes the it does not light up. Current through A and B (I) = { 2R Pown dissipated A and B 7² R = E2R = E? чR The intensities of A and B increases ley 4/4 Light bulb ( goes out. (a) Before closing switch 3R After closing switche I E 2R Current increases My faclar UR² . E а of 2 / 2

Page No. Date:...... (LD Before closing I R ER 3R المه E 3 After closing B IR E R ६ 2R 2 the voltage increases of ley a facta z / Before closing I Req Total Power Req P = I² (3R) 2 3R {² (3R) 9R² E? 3R After closing Total Power I Rea 2R pa E² (2R) E2 2R increas power dissipated The total by a factor of cases 3 2
formula was used.