Question

The value of current 'I' in the given current distribution is

• A. 0.2 A
• B. 1.9 A
• C. 1.5 A

Answer 1

Answer: (C)

1.5 A

Answer 2

1. Total incoming current = $1.2 + 1.0 = 2.2$ A.

2. At the first junction, currents split as $0.2$ A, $0.1$ A, and the remaining current, say $I'$.

   $$I' = 2.2 - (0.2 + 0.1) = 2.2 - 0.3 = 1.9\ \text{A}$$

3. At the next junction, $I'$ splits into currents $I$ and $0.4$ A.

   $$I = 1.9 - 0.4 = 1.5\ \text{A}$$