Questions
In the given circuit, it is observed that the current I is independent of the value of the resistance R6. Then the resistance values must satisfy
a
R1R2R5= R3R4R6
b
1R5+1R6= 1R1+ R2+1R3 + R4
c
R1R4= R2R3
d
R1R3= R2R4= R5R6
detailed solution
Correct option is C
As I is independent of R6, no current flows through R6. This requires that the junction of R1 and R2 is at the same potential as the junction of R3 and R4. This must satisfy the condition R1R2=R3R4, as in the Wheatstone bridge.Talk to our academic expert!
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Seven resistances are connected as shown in the figure. The equivalent resistance between A and B is
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