Question
The deflection in a Galvanometer falls from 50 division to 20 when $12 \Omega$ shunt is applied. The Galvanometer resistance is(a) $18 \Omega$(b) $36 \Omega$(c) $24 \Omega$(d) $30 \Omega$
Step 1
Step 1: We know that the shunt resistance (S) is given by the formula: \[ S = \frac{G(I - I_g)}{I_g} \] where G is the galvanometer resistance, I is the total current and \(I_g\) is the current through the galvanometer. Show more…
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Round 2
The deflection in moving coil Galvanometer is reduced to half when it is shunted with a $40 \Omega$ coil. The resistance of the Galvanometer is (c) $40 \Omega$ (a) $60 \Omega$ (b) $\overline{10 \Omega}$ (d) $20 \Omega$
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