Options Phvsics1214 Summer 17 https:/Psessionn blernD:79144246 Problem 21.57-Enh

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Options Phvsics1214 Summer 17 https:/Psessionn blernD:79144246 Problem 21.57-Enhanced with Feedback « previous 10 of 15 Problem 21.57- Enhanced-with Feedback Part A Find the current through each resistor using the nulos for seriss and parallel resstors Express your answers using two sign icant figures separated by commas Consider the circuit shown in the figurelgure 1) Suppose the four resistors in this circuit have the values andthat the enf al te battery--16V You may want to review(0 reges 743-151 li,h,h, 1.- 086024,0 62,024 A My Answers Give Up Correct Here we leam how to apply the ales for series and parabel resistors to determine the cur hrough each nesistor in the circ Part Express your answers using two significent tigures separaed by commas R,

Explanation / Answer

Applying KVL in left side loop,

e - I3 R3 - I1 R1 = 0

12 I1 + 7.6 I3 = 15 . .... (i)

KVL in right side loop,

I2 R2 + I2 R4 - I3 R3 = 0

19.9 I2 - 7.6I3 = 0 ...... (ii)

Applying KCL:

I1 = I2 + I3

I1 - I2 - I3 = 0 ..... (iii)

Solving (i), (ii) and (iii) ,

I1 = 0.857 A

I2 = 0.237 A

I3 = 0.620 A

I4 = I2 = 0.237 A

Ans: 0.857, 0.237, 0.620, 0.237

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