Find the currents flowing in the circuit in the figure below. (assume the resistances are r1 = 8 ω, r2 = 10 ω, r3 = 12 ω, r4 = 15 ω, r1 = 0.5 ω, r2 = 0.25 ω, r3 = 0.75 ω, and, r4 = 0.25 ω.)

By Kirchoff's law in left side loop

similarly kirchoff's law in right side loop

also by junction law we know that

now by plug in all values we have

So by solving above equations we have

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-scientists plan in going deeper than 120 meters

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hope this !