Q. Calculate I1 in the circuit

D e a r S t u d e n t, l e t t h e v o l t a g e o f t h e n o d e C i s v a n d t h e n o d e B i s g r o u n d e d . u s e t h e n o d a l a n a l y s i s . i a s s u m e c u r r e n t i f l o w f r o m C - D i' f l o w f r o m C - A i'' f l o w f r o m E - F i + i' + i'' = 0 \frac{v}{20} + \frac{v + 40}{40} + \frac{v - 80}{20} = 0 2 v + v + 40 + 2 v - 160 = 0 5 v = 120 v = \frac{120}{5} = 24 v o l t . I_{1} = \frac{- 24}{20} = \frac{- 6}{5} A a c c o r d i n g t o y o u r m e n t i o n d i r e c t i o n R e g a r d s

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