Ans. 0.66 A

Explanation: Equivalent resistance of the circuit = R1 || R2 + R3 = (9||9 + 9) ohm = (4.5+9) ohm = 13.5 ohm.

So, total circuit current = Supply voltage/ Equivalent resistance = (18/13.5) A = 1.33 A.

It means, current flowing through R1 ad R2 together = 1.33 A. Since, R1 = R2, the current should be equally divided between them.

Hence, current flowing through R2 = (1.33 A)/ 2 = 0.66 A .

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