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Question

In the circuit arrangement shown, if the pointAand 8 are joined by a wire the current in this wire will be
330734_b81e6ca71a7d40daa3a05cf6b480729f.png
  1. 1A
  2. 2A
  3. 4A
  4. Zero

A
1A
B
2A
C
4A
D
Zero
Solution
Verified by Toppr

Wheat stone bridge is an electrical circuit . In wheat-stone bridge four resistances R1, R2, R3 and R4 are connected end to end with each other to form a closed loop.
In a balanced condition, the four resistances in the circuit are of the same value and the current at the mid points of the circuit is always zero. That is, the potential VA of point A is equal to the potential VB at point B. VAVB=0.
Hence, if the point A and B are joined by a wire the current in this wire will be 0.

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