For the circuit shown in the figure below, the values of i0 and i1 respectively are

  1. 0 A, -3 A
  2. 2 A, -2 A
  3. 0 A, -1 A
  4. 0 A, i1 can’t be determined

Answer (Detailed Solution Below)

Option 3 : 0 A, -1 A
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ST 1: UPSC ESE (IES) Civil - Building Materials
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Detailed Solution

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By applying voltage division in the input loop,

i0 will be zero, as there is no closed path.

By applying KCL in the right-side circuit,

 ----(1)

As 10 Ω and 5 Ω are connected in parallel, voltage across them are equal.

⇒ 10 i1 = 5 i2 ⇒ i2 = 2i1 ----(2)

From equation (1) and (2)

i1 + 2i1 = -3 ⇒ i1 = -1 A

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