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PhysicsMagnetismMagnetic torque & energyEasy2 minPYQ_2008
PhysicsEasystatement

Statement 1 The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil. and Statement 2 Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

Options:

Answer:
C
Solution:

Using iron core, value of magnetic field increases. So, deflection increases for same current. Hence, sensitivity increases. Soft iron can be easily magnetized or demagnetized. correct option is (c).

Stream:JEE_ADVSubject:PhysicsTopic:MagnetismSubtopic:Magnetic torque & energy
2mℹ️ Source: PYQ_2008

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