Class 12PhysicsMoving Charges and MagnetismThe Moving Coil Galvanometer (Sensitivity) and Ammeter and Voltmeter Conversion
DifficultTo find the resistance of a galvanometer by the half-deflection method,the experimental data obtained are given in the table below:
$S. No.$ Resistance $R \ (\Omega)$ Deflection $(\theta)$ Shunt $S \ (\Omega)$ Half deflection $(\theta / 2)$ Galvanometer resistance $(G)$ $1$ $3300$ $30$ $80$ $15$ $G_1$ $2$ $5000$ $20$ $80$ $10$ $G_2$
From the above data,the galvanometer resistance $G$ will be near to: (in $\Omega$)
| $S. No.$ | Resistance $R \ (\Omega)$ | Deflection $(\theta)$ | Shunt $S \ (\Omega)$ | Half deflection $(\theta / 2)$ | Galvanometer resistance $(G)$ |
| $1$ | $3300$ | $30$ | $80$ | $15$ | $G_1$ |
| $2$ | $5000$ | $20$ | $80$ | $10$ | $G_2$ |
From the above data,the galvanometer resistance $G$ will be near to: (in $\Omega$)
- A$20$
- B$40$
- C$50$
- D$80$
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