What are the (a) magnitude and (b) direction (up - type \"1\" or down - type \"0

Question

What are the

(a) magnitude and (b) direction (up - type "1" or down - type "0") of i1 and the

(c) magnitude and (d) direction of i2?

(e) Does battery 1 supply (type "1") or absorb (type "0") energy, and

(f) what is its energy transfer rate?

(g) Does battery 2 supply (type "1") or absorb (type "0") energy, and

(h) what is its energy transfer rate?

In the figure the ideal batteries have emfs 1 = 13.7 V and 2 = 4.21 V, and the resistances are each 4.01 ?. What are the a)magnitude and (b) direction (up - type "1" or down - type "0") of i1 and the (c) magnitude and (d) direction of i2? (e) Does battery 1 supply (type "1") or absorb (type "0") energy, and (f) what is its energy transfer rate? (g) Does battery 2 supply (type "1") or absorb (type "0") energy, and (h) what is its energy transfer rate?

Explanation / Answer

a) i1 = E1/4.01 =3.41

b) 0

c) i2 = (E2+E1)/10 =1.79 A

d) down

e) supply type 1

f) rate = E1*i1 +E2*i2 =54.23 W

g) supply type 1

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