Current in the Outer 70 Ω

Difficulty: Easy · Topics: Resistance, Series and Parallel, Ohm's Law

Tashqi 70 Ω dagi tok

In the network shown,

physics "view":[-1.5,-0.5,6.8,7.0],"alt":"An outer diamond of 70, 60, 50 and 30 Ω and an inner diamond of 70, 80, 40 and 20 Ω; X joins the inner left node and Y the inner top node.","items":["type":"resistor","from":[0,3.0],"to":[3.0,6.0],"label":"70 Ω","side":1,"length":0.9,"type":"resistor","from":[3.0,6.0],"to":[6.0,3.0],"label":"60 Ω","side":1,"length":0.9,"type":"resistor","from":[0,3.0],"to":[3.0,0],"label":"50 Ω","side":-1,"length":0.9,"type":"resistor","from":[3.0,0],"to":[6.0,3.0],"label":"30 Ω","side":-1,"length":0.9,"type":"wire","points":[[0,3.0],[1.6,3.0]],"type":"wire","points":[[3.0,6.0],[3.0,4.4]],"type":"resistor","from":[1.6,3.0],"to":[3.0,4.4],"label":"70 Ω","side":1,"length":0.7,"type":"resistor","from":[3.0,4.4],"to":[4.4,3.0],"label":"80 Ω","side":1,"length":0.7,"type":"resistor","from":[1.6,3.0],"to":[3.0,1.6],"label":"40 Ω","side":-1,"length":0.7,"type":"resistor","from":[3.0,1.6],"to":[4.4,3.0],"label":"20 Ω","side":-1,"length":0.7,"type":"node","at":[0,3.0],"label":"X","anchor":"n","upright":true,"type":"node","at":[3.0,6.0],"label":"Y","anchor":"nw","upright":true,"type":"node","at":[1.6,3.0],"type":"node","at":[3.0,4.4],"type":"arrow","from":[-1.3,3.0],"to":[-0.1,3.0],"colour":"ink","width":1.3,"head":8,"type":"label","at":[-0.75,2.6],"text":"1.5 A","anchor":"c","size":13,"type":"arrow","from":[3.0,6.05],"to":[3.0,6.8],"colour":"ink","width":1.3,"head":8,"type":"label","at":[3.2,6.6],"text":"1.5 A","anchor":"e","size":13]

what current flows in the outer 70 Omega resistor directly between X and Y?