This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: 2. The internal resistance of the battery is approximately 0.8375 ohms. 3. The yintercept of this line, or E=1.3661. 4. The percentage difference from the actual EMF of the battery is (abs(1.35 1.3661)/1.3661)*100= 0.0118 % 8.1.2 Batteries in Series I 1. V=EIr r = {(VE)/I} r = (4.08 V 4.31 V)/ 0.08A = 2.8 2. E = E1+E2+E3 = 1.33 V+1.48 V+1.47 V = 4.28 V 3. Percent Difference = {abs(EE)/E}x100 % {abs(4.31 V4.28 V)/4.28 V}x100% = 0.7 % 4. Internal resistance combined (r) = 2.8 Individual battery resistance (2.8 /3) = 0.93 0.8375 was what was found in 8.1.1, which differs by 0.093 , which seems to be consistent on how the resistance of the batteries also add up. 8.1.3 Batteries in Series II 1. V=EIr r = {(VE)/I} r = (1.26 V 1.35 V)/ 0.027A = 3.33 The combined total resistance of the batteries is 3.33 ohms. 2. E1= 1.33 V E2=1.48 V E3=1.47 V E(total)=1.33 V+1.48 V+(1.47 V)=1.34 V 3. Percent Difference = {abs(EE)/E}x100 % {abs(1.35 V1.34V)/1.34 V}x100% = 0.75 %{abs(1....
View
Full
Document
 Spring '11
 long
 Batteries

Click to edit the document details