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  4. Five equal resistances each of resistance R are connected as shown in the figure. A battery of V volts is connected between A and B. The current flowing in AFCEB will be

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Q. Five equal resistances each of resistance $R$ are connected as shown in the figure. A battery of $V$ volts is connected between $A$ and $B$. The current flowing in $AFCEB$ will bePhysics Question Image

WBJEEWBJEE 2011Current Electricity

Solution:

$R_{\text {eq. }}$ of wheatstone bridge $=R$
current in the circuit $\Rightarrow V=I R \Rightarrow I=\frac{V}{R}$
current in one branch of the wheatstone bridge $=\frac{ V }{2 R }$

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