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  4. Twelve resistors each of resistance 1 Ω are connected as shown in the figure. Net resistance between points A and H would be <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-iudzkoexwuey.png />

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Q. Twelve resistors each of resistance $1 \, \Omega $ are connected as shown in the figure. Net resistance between points $A$ and $H$ would be



Question

NTA AbhyasNTA Abhyas 2020Current Electricity

Solution:

Let current i enters from point A and leaves at H. Then current can be distributed as follows :

Solution

from the above diagram we can see that no current will flow in wires CE and FD. So, the simple circuit is as follows:

Solution

$∴ \, \, \, \text{R}_{\text{AH}} = \frac{3}{4} \Omega $