In the circuit shown, the source has a voltage of and internal resistance of , resistances of and are and respectively. Find the currents through and respectively.
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The equivalent circuit is as shown. Then we have:
I = r + R 1 ∣ ∣ R 2 E 0 = 0 . 1 + 4 ∣ ∣ 6 5 = 0 . 1 + 4 + 6 4 × 6 5 = 2 A
Using current division:
⎩ ⎪ ⎨ ⎪ ⎧ I 1 = R 1 + R 2 R 2 I = 4 + 6 6 × 2 = 1 . 2 A I 2 = R 1 + R 2 R 1 I = 4 + 6 4 × 2 = 0 . 8 A
Therefore, the answer is 1.2 A, 0.8 A .