A galvanometer of $10 \,\Omega$ resistance gives full scale deflection with $0.01$ ampere of current. It is to be converted into an ammeter for measuring $10$ ampere current. The value of shunt resistance required will be
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(a) $S = \frac{{{i_g}G}}{{i - {i_g}}} = \frac{{10 \times 0.01}}{{10 - 0.01}} = \frac{{10}}{{999}}$ $\Omega$
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