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+1 vote
89.8k views
in Physics by (36.3k points)

The current I1 (in A) flowing through 1 Ω resistor in the following circuit is : 

(1) 0.5

(2) 0.2

(3) 0.25

(4) 0.4

2 Answers

+2 votes
by (33.0k points)
selected by
 
Best answer

Answer is (2) 0.2

Equivalent resistance of upper branch of circuit R = 2.5 Ω

Voltage across upper branch = 1 V

i = 1/2.5 = 0.4 A

I1 = 0.2 A

+2 votes
by (51.9k points)

Answer is (2) 0.2

I = 1/2.5 = 0.4 A

i = I/2 = 0.2 A

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