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Two cells 6V, 1ohm, and 4V,2ohm are connected form a closed loop.The current,which cannot flow through the loop is............5/3A. pls explain.....

Two cells 6V, 1ohm, and 4V,2ohm are connected form a closed loop.The current,which cannot flow through the loop is............5/3A.


 


pls explain.....

Grade:12

1 Answers

Sudhanshu Shekhar
7 Points
12 years ago

If their positive terminals are in the same direction as of flow of current then the effective emf is 10 volts and effective resistance is 3ohm  hence the current is 10/3 ampere

 

if the positive terminals are in the opposite directions the effective emf is 2 volts and effective resistance remains 3 ohm

hence the current is 2/3 ohm

so 5/3 cannot be the current through the loop

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