Question

9. [-/16 Points] DETAILS OSUNIPHYS1 27.2.WA.019. Four identical bulbs, each with a filament resistance of 128 1, are connected to a 45-V battery as shown in the diagram below. SZ, 52, and S, represent switches. S1 S2 (a) If S, and S, are closed while s, is open, what is the current through each bulb? bulb 1 A bulb 2 bulb 3 A bulb 4 A A (b) If s, is closed while S, and S, are open, what is the current through each bulb? bulb 1 A bulb 2 bulb 3 A bulb 4 A A (c) If S, and S, are closed while S, is open, what is the current through each bulb? bulb 1 bulb 2 bulb 3 bulb 4 A A A (d) If S, and S, are closed while s, is open, what is the current through each bulb? bulb 1 bulb 2 bulb 3 A bulb 4 A A Additional Materials eBook Submit Answer

Answer 1

R = 1282 ① & 2 are series V=usul usul R = 128 + 128 eq 256 2 I = l = 0.1757 A. Bulb I 0.1757 A Bulb 2 0.17574 Bulb 3 > O A (short circuits Соролл Bulb u OA 0 & 3.9 are series hea - 128+128 +128 = 3842 고 V 45 Rea 384 Bulb Bulb 2 Bulb ③ I -0.1171A 70.l171 A O Copen) o. 1171 o. 1171 A. Bulb (4)