(a) What is the current I 2 ? For the purpose of doing your calculation, assume

Question

(a) What is the current I2? For the purpose of doing your calculation, assume that this current is in the direction indicated in the figure; this assumption will determine the algebraic sign of your answer (a negative answer will indicate that this current is actually towards the top of the figure).

(b) What is the current I3? For the purpose of doing your calculation, assume that this current is in the direction indicated in the figure; this assumption will determine the algebraic sign of your answer (a negative answer will indicate that this current is actually towards the bottom of the figure).

Explanation / Answer

i3 = i2 + i1

R=3.5 ohms

i1=2.2 amp

24 + E = (i1 +i2 )*3.5 + 6*i1

24 = 6*i1 - 3*i2

E = 3*i2 + 3.5*(i1+i2)

24 = 6*2.2 - 3*i2

i2 = -10.8( opposite direction as assumebed negative sign indicates)

i3 = i1 +i2 = -8.6 amp ( opposite direction as assumebed negative sign indicates)

E = -62.5 ( opposite direction as assumebed negative sign indicates)

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