Problem 26.31 of 1 Figure 1 340 WWh 8, 47 I S2 45 V S2 75 V 192 Part A What is t

Question

Problem 26.31 of 1 Figure 1 340 WWh 8, 47 I S2 45 V S2 75 V 192 Part A What is the potential difference between points a and d in the figure.(Figure 1) Express your answer to two significant figures and include the appropriate units. Va-V Value V Submit My Answers Give Up Incorrect; Try Again; 5 attempts remaining Part B What is the terminal voltage of top battery? Express your answer to two significant figures and include the appropriate units. 18 S2 v. Value Units Submit My Answers Give Up Part C What is the terminal voltage of bottom battery?

Explanation / Answer

here,

using KVL in the top loop

I1 * ( 34) + I3 * ( 47 + 1) = E2 ....(1)

and

using KVL in the lower loop

I2 * (1 + 18) + I3 * ( 47 + 1) = 75 + 45 ...(2)

and

using KCL

I3 = I1 + I2 ....(3)

from (1) , (2) and (3)

I1 = - 0.86 A

I2 = 2.41 A

I3 = 1.55 A

A)

the potential difference between A and D , Vad = I1 * 34

Vad = 29.24 V

B)

the terminal voltage of top battery , Vt = E2 - 1 * I3

Vt = 45 - 1 * 1.55 V

Vt = 43.35 V

C)

the terminal voltage of bottom battery , Vb = E1 - 1 * I3

Vb = 75 - 1.55 = 73.45 V

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