A galvanometer has 36 ohm resistance. If a 4 ohm shunt is added to this, the fraction of current that passes through the galvanometer is- (1) 1/4 (2) 1/9 (3) 1/10 (4) 1/40

Q. A galvanometer has resistance $36\Omega$. If a shunt of $4\Omega$ is added with this, then fraction of current that passes through galvanometer is :-

Q. A galvanometer having a resistance of 8 ohms is shunted by a wire of resistance 2 ohms. If the total current is 1 amp., the part of it passing through the shunt will be :

Q. A moving coil galvanometer has $50$ turns and each turn has an area $2\times {10}^{-4}{m}^2$. The magnetic field produced by the magnet inside the galvanometer is $0.02T$. The torsional constant of the suspension wire is ${10}^{-4}Nm-ra{d}^{-1}$. When a current flows through the galvanometer, a full-scale deflection occurs if the coil rotates by $0.2rad$. The resistance of the coil of the galvanometer is $50\Omega$. This galvanometer is to be converted into an ammeter capable of measuring current in the range $0-1.0A$. For this purpose, a shunt resistance is to be added in parallel to the galvanometer. The value of this shunt resistance, in ohms, is

Q. Resistance of a galvanometer coil is 600 ohms and a shunt is put in parallel to it. If only 1% of the main current passes through the galvanometer, then multiplying factor K is:

Q. The deflection in a galvanometer, decreases to 1/4 th of the original deflection when it is shunted by 15 ohm. The galvanometer resistance is---