Class 12PhysicsMoving Charges and MagnetismThe Moving Coil Galvanometer (Sensitivity) and Ammeter and Voltmeter Conversion
EasyCertain galvanometers have a fixed core made of non-magnetic metallic material. The function of this metallic material is
- Ato oscillate the coil in magnetic field for a longer period of time
- Bto bring the coil to rest quickly
- Cto produce a large deflecting torque on the coil
- Dto make the magnetic field radial
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The sensitivity of a galvanometer is $60 \text{ division/A}$. When a shunt is used,its sensitivity becomes $10 \text{ division/A}$. If the galvanometer is of resistance $20 \ \Omega$,the value of shunt used is (in $\Omega$)
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