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Wheatstone's Bridge - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main
Quick Facts
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Wheatstone's bridge is considered one of the most asked concept.
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24 Questions around this concept.
Solve by difficulty
In a Wheatstone’s bridge, three resistance P,Q and R connected in the three arms and the fourth arm is formed by two resistance S1 and S2 connected in parallel. The condition for bridge to be balanced will be
The current I drawn from the 5 volt source will be :
Concepts Covered - 1
Wheatstone's bridge
Wheatstone's Bridge
It is an arrangement of four resistances which can be used to measure one of them in terms of rest. Let R is an adjustable resistance, Pand Q are known resistance and S is an unknown resistance. To obtain valur of S we will close the keys K1 and K2 and will adjust R to obtain null deflection in the galvanometer. Then the balancing condition of bridge is
( Balanced condition )
No current will flow through the galvanometer
unbalanced condition:
Current will flow from to
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