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Q. The current $I$ drawn from the $5$ volt source will be:Physics Question Image

AIEEEAIEEE 2006Current Electricity

Solution:

The given circuit can be redrawn as
which is a balanced Wheatstone’s bridge and hence, no current flows in the centre resistor, so equivalent circuit would be as shown below.
So, $I=\frac{V}{R}=5/10 = 0.5\,A$

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