Question

Calculate electric current in the following circuit, if voltage V is equal to 12V
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Answer 1

Explanation:

From the given figure we ca easily find the resultant resistance of circuit,

⟹Req1=151+151=152

Req=215Ω

Using formula for Ohm's law,

V=IReq

2=IReq

⟹I=154A

So, a current of 154A is passing through circuit.

Using Kirchhoff's law for loop TRBSuT

⟹I1(10)+I1(5)−2=0

⟹I1=152A

⟹ Current through arm PAQ

⟹I−I1=154−152=152A

So, potential at point A is given by 

V