Current Electricity 4 Question 21
21. In the shown arrangement of the experiment of the meter bridge if $A C$ corresponding to null deflection of galvanometer is $x$, what would be its value if the radius of the wire $A B$ is doubled?
$(2003, s)$
(a) $x$
(b) $x / 4$
(c) $4 x$
(d) $2 x$
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Solution:
- The ratio $\frac{A C}{C B}$ will remain unchanged.
