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Two conductors AB and CD are connected to a branched circuit through which current is flowing (Fig.). The positions of points A, B, C, D are chosen so that there is no current in these conductors. These two bridges are then connected by a wire EK. Does current now flow in wire EK and in conductors AB and CD? What is the potential of points E and K?

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There will be current, since the potentials of conductors AB and CD are different. The directions of all the currents are shown in Fig. 296. The potentials of points A,B,C, and D change.

 The difference in potential between points A and C and also between B and D decreases. The potential of point E becomes lower than the potential of points A and B; the potential of point K becomes higher than the potential of points C and D.

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