Solve all parts and circle answer for each part In the figure below, the ideal b

Question

Solve all parts and circle answer for each part In the figure below, the ideal batteries have emfs gi-14.0 V and 82-4.00 v, and the resistances are each 3.90 . te, fe, (a) What is the size and direction of current /1? (Take upward to be positive.) A. (b) What is the size and direction of current /2? (Take upward to be positive.) (c) At what rate is energy being transferred at the 4.00 V battery? Is the battery supplying or absorbing energy? O supplying O absorbing (d) At what rate is energy being transferred at the 14.0 V battery? Enter a number Is the battery supplying or absorbing energy? O supplying absorbing

Explanation / Answer

part a)

for the current i1

Using KVL

E1 + i1 * 3.90= 0

14 + 3.90 * i1 = 0

i1 = -3.6 A

part b)

for the current i2

Using KVL

-4 - 3.90 * i2 - (3.90/2) * i2 - (3.90) * i2 - 3.6 * 3.90 = 0

solving for i2

i2 = -1.85 A

part c)

energy transferred at 4 V = 1.85 * 4 = 7.4 W

part d) supplying

part e)

energy transferred at 14 V = 3.6* 14 = 50.4 W

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