The magnitude of I in ampere unit is

Question

The magnitude of I in ampere unit is (A) 0.1 (B) 0.3 (C) 0.6 (D) none of these

Tardigrade Admin · Accepted Answer

All the resistances are in paralleI order, so voitage across them will be equal.

∴ 60 I = (15 + 5) I_{1}

\Rightarrow 60 I = 20 I_{1}

\Rightarrow I_{1} = 3 I \dots (i)

Again

(15 + 5) I_{1} = 10 (1 - I - I_{1})

\Rightarrow 2 I_{1} = 1 - I - I_{1}

\Rightarrow 2 (3 I) = 1 - I - 3 I

\Rightarrow 6 I + 4 I = 1

\Rightarrow 10 I = 1

∴ I = \frac{1}{10} = 0.1 A

Q. The magnitude of I in ampere unit is