In the given circuit if I1 and I2 are the currents in resistors of resistances R1 and R2, respectively, then
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a
I1=3 A, I2=2 A
b
I1=0, I2=2 A
c
I1=2A, I2=2 A
d
I1=2A and I2 can't be determined with given data
answer is D.
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Detailed Solution
Since 3 A is in upper part of circuit. Therefore out of 5 A coming in lower part, 3 A has to go to the upper pert, out of which some part will flow through R2 and rest through the unknown resistance.∴ 2 A will go through R1.