Questions
In the figure given, the value of X resistance when the potential differences between B and D is zero, is
a
4 ohm
b
6 ohm
c
8 ohm
d
9 ohm
detailed solution
Correct option is C
Potential difference between B and D is zero, it means Wheatstone bridge is in balanced condition.So PQ=RS ⇒ 213+ 8X8+X=186 ⇒ X=8 ΩTalk 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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