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Lab 7 data 7.4.2

# Lab 7 data 7.4.2 - 7.4.2 A Parallel Circuit R1 R3 R total...

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7.4.2: A Parallel Circuit R1 104.6 R3 318.8 R total 80.5 V1 6.14 V V3 6.14 V I1 56 mA I3 21.5 mA I total 78 mA Voltage Potential 6.40V 1. 1/R = 1/ R 1 + 1/ R 3 = 1/104.6 +1/318.8 Therefore, R = 78.8 V=IR I’ = V/R = 6.40 V/78.8 = 81.2 mA I 1 ’ = V/R 1 = 6.40 V/104.6 = 61.2 mA I 3 ’ = V/R 3 = 6.40 V/318.8 = 20.1 mA V 1 ’= I 1 ’*R 1 = 61.2 mA*104.6 = 6.40 V V 3 ’= I 3 ’*R 3 = 20.1 mA*318.8 = 6.40 V 2. ( I-I’ /I’)*100% = ( 78 mA-81.2 mA /81.2 mA)*100% = 3.94 % ( I 1 -I 1 /I 1 ’)*100% = ( 56 mA-61.2 mA /61.2 mA)*100% = 8.49 % ( I 3 -I 3 /I 3 ’)*100% = ( 21.5 mA-20.1 mA /20.1 mA)*100% = 6.97 % The values are precise and accurate. All the measured voltages are little bit smaller values comparing to the expected values. 3. ( V 1 - V / V)*100% = ( 6.14V-6.40V /6.40V)*100% = 4.06 % ( V 3 - V / V)*100% = (
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