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find the currents in the different resistor shown in figure.

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The two `2(Omega)`resistors are in series so that their equivalent resistance are in series so that their equivalent resistance is `4(Omega)`. The two 8(Omega) resistors are in parallel and their equivalent resistance is also`4(Omega).`The circuit may be redrawn as in firgure.
Suppose the middle `4Omega`resistor is removed, THe remaining circuit is redrawn in figure, Is is easy to see that no current will go through any resistor. if we take the potential at b to be zero,the potential at d will be 2V.The potential at a and c will also be 2V.As there is no current in the `4(Omega)resistors, the potential as e will also be 2V. Thus, there is mo potential difference between d and e, no current will be drawn into it and hence no change will occur in the remaining part of the circuit. This circuit is then the same as hte given circuit. Thus,the current in all the resistors in the given circuit is zero.
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HC VERMA-ELECTRIC CURRENT IN CONDUCTORS-Worked Out Examples
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  2. A wire of resistance 10(Omega)is bent to form a complete circle.Find i...

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  3. find the currents in the different resistor shown in figure.

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  4. Find the current supplied by the battery in the circuit shown in figur...

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  5. Find the equivalent resistance between the point a and b of the networ...

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  6. Find the effective resistance between the points A and B in figure.

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  7. Find the equivalent resistance of the network shown in figure between ...

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  8. Each resistor shown in figure has a resistance of 10(Omega)and the bat...

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  9. Find the equivalent resistances of the nerwork shown in figure between...

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  10. In the circuit shown in figure E,F, G and H are cell of emf 2,1,3, and...

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  11. Find the equivalent resistance between the point a and b of the circui...

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  12. Find the currents going through the three resistors R(v),R(2)andR(3) i...

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  13. Twelve wire, each having resistance r, are joined to form a cube as sh...

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  14. Find the equivalent resistance of the circuit of the previous problen ...

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  15. Find the equivalent resistance between thepoints a and b of the infini...

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  16. Find the equivalent resistance of the network shown in figure between ...

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  17. (a)Find the current I supplied by the battery in the network shown in ...

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  18. A part of a circuit in steady state along with the currents flowing in...

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  19. (a)find the potential drops across the two resistors shown in figure. ...

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  20. A galvanometer has a coil of resistance 100(Omega) showing a full-scal...

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